The early summer heat settled over Shinju with a heavy, stifling weight as June arrived, the water temperature climbing to something that made even the most practiced swimmers sluggish by afternoon. Reina had been on Umi-no-Hoshi for three months now—ten months since her father's death—the numbers were both impossibly distant and painfully close. The end of the school term loomed, bringing final projects and assessments, June brought longer days with more light filtering through the ocean's surface, coral reefs blooming in vibrant explosions of color, and a rhythm to school life that had become almost comfortable.

  Almost.

  Takahana-sensei hovered at the front of their second-year classroom, her silver tail swaying gently as she gestured to a holographic projection hovering in the water—a timeline of Umi-no-Hoshi's colonization, Earth dates converted to local calendar markers. "Today we're starting our unit on settlement history," she announced, her voice carrying the firm but warm authority Reina had come to appreciate over the past months. "I want each of you to prepare a presentation on some aspect of the early colonists' experience. Focus on technological adaptation, cultural preservation, or personal family legacies.”

  She continued, pointing at the timeline. "You'll notice our early history has significant gaps, particularly in the earliest period. "Most of you know the story we celebrate every Second Landing Day, when Captain Yashiro arrives with eight hundred colonists aboard the Hōrai Maru. But what many people forget—or never learned—is that they weren't the first humans here. A ship crashed during a survey mission. They survived for fifteen years before the Hōrai Maru arrived.

  A ripple of surprise went through the classroom. Several students exchanged glances—this clearly wasn't common knowledge, or at least not emphasized in their earlier education.

  She highlighted the gray sections of the timeline again. "We have fragments. We know they developed the transformation procedure—that's documented because it was critical and later colonists needed it. We know sixteen survived and founded Shinju. But how they actually survive those first fifteen years? Who commanded them? What were their specific roles?” She spread her hands. "Most of that is lost."

  A student raised her hand—a girl with a scarlet tail. "But couldn't we request records from Earth? The JSSDF must have had crew manifests."

  Takahana-sensei's expression grew rueful. "We tried. Many times over the centuries."

  She pulled up another display—copies of official Earth communications dated across decades. Institutional changes and archive consolidations over the centuries erased most pre-2300 personnel data."

  "So nobody knows?" another student asked, frustration clear in his voice.

  "This is what makes primary sources extraordinarily valuable," Takahana-sensei continued. "You might think you're just doing a school project, but you're potentially contributing to historical recovery. Family stories, preserved artifacts, comparative analysis between Earth traditions and their adaptations here—all of these matter when official records are incomplete. You might have fragments of their story that no one else has preserved. Others have recent connections to Earth, fresh memories of what adaptation feels like. All perspectives are valuable."

  The classroom was utterly silent now. An ache settled in Reina's chest—the weight of incomplete history, of people who'd done something extraordinary but had been reduced to a footnote, overshadowed by the larger, better-documented story that came after.

  After class, Natsuki caught up with Reina near the exit, "Want to work together? We could compare perspectives—your recent arrival versus my family's history here. Might be interesting." They moved to a quieter alcove away from dispersing students. Reina studied her friend's face. "Your family descended from the crash survivors?"

  "From one of the sixteen," Natsuki confirmed, her fingers touching her pendant. "It's like Takahana-sensei said—everyone knows Captain Yashiro and celebrates Second Landing Day. But my ancestor, who survived the crash and the following fifteen years? Reduced to a name in our family shrine, a tradition without context."

  "It must be difficult," Reina said softly.

  Natsuki's eyes met Reina's, intense with feeling. "That's why your perspective matters. You remember everything clearly—your father, what he was like, what adaptation feels like right now while it's happening. Documenting it now ensures your descendants inherit a person, not just a name."

  The weight of that settled on Reina's shoulders. She thought of her father's omamori on their memorial shelf, of how vivid his memory still was—his voice, his laugh, the way his hands moved when he tied fishing knots. How much would fade over decades? Over centuries?

  "Okay," she said, voice firm. "Let's work together. Fresh memory and forgotten legacy. What's still clear and what's been lost."

  After history came marine biology with Shimizu-sensei, whose enthusiasm hadn't dimmed despite the heat. If anything, he seemed more energized, practically vibrating as he explained the summer coral spawning cycle. "This is the most important reproductive event of the year!" he said, projecting images of coral releasing clouds of eggs and sperm into the current. "Synchronized, magnificent, and absolutely critical for reef health. We'll be taking a field trip next month to observe it firsthand. Bring your recording equipment—this is something you need to see to believe!"

  A field trip. Reina's first since arriving. The thought sent a flutter of nervousness and anticipation through her. She'd gotten comfortable swimming the familiar routes—pod to school, school to shrine, shrine back to pod. Venturing further out into Shinju's reef system felt like crossing another threshold.

  Lunch found them at their usual coral ledge, food orbs floating between them as they ate. The open chamber was packed today, the heat making everyone seek out the cooler depths near the academy's center. Through the wide opening to the middle school section, Hana argued animatedly with her group. They seemed to be in the middle of some spirited debate, Hana's tail lashing out as she argued a point while Yuuta laughed.

  "Your sister's really settled in," Natsuki observed, following Reina's gaze. "Yuuta's completely smitten. It's kind of adorable."

  "She hasn't noticed," Reina said with a small smile. "Or she's pretending not to. Hard to tell with Hana."

  "Give it time," Yumi said, demolishing a kelp wrap with characteristic speed. "He'll work up the courage to say something eventually. Or she'll figure it out and make the first move. Your sister doesn't seem like the waiting type."

  "Definitely not," Reina agreed.

  Taro looked up from his sketchpad, where he'd been working on what looked like a detailed rendering of the coral spawning process Shimizu-sensei had described. "I'm doing my history project on the crash," he said quietly. "The ship that brought the first sixteen survivors. There's not much documentation but I want to try drawing what it might have looked like. The impact, the survivors adapting. If that's okay." He glanced at Natsuki. "I know your family descended from them."

  "It's fine," Natsuki said, her hand drifting to her pendant. "I think it's important to remember. Mom and Dad would probably help if you wanted to talk to them. They know the stories better than anyone."

  "Really?" Taro's eyes lit up with quiet excitement. "That would be... yeah. Thank you."

  "What are you doing for your project, Yumi?" Reina asked.

  Yumi grinned while doing a little flip. "Economic development. How Shinju went from a handful of survivors to a functioning settlement with trade connections. My parents are on the reef council, so I've got access to all the old records. Plus I get to talk about how we're basically the backbone of the regional economy." She puffed out her chest slightly despite being the smallest of their group. "Someone's got to brag about what we've built."

  "That's actually a good topic," Natsuki said with genuine approval. "Your family has been here almost as long as mine."

  As they finished eating, three other students swam over—girls Reina recognized from their year but hadn't really talked to much beyond polite greetings in passing. She knew their faces from shared classes, had seen them at lunch in different corners of the chamber, but Natsuki's group had been her anchor, leaving little energy for expanding her social circle.

  The girl in front had a warm brown tail and an open, friendly expression that immediately put Reina at ease. Behind her, a student with a pale blue tail moved with an almost meditative calm, and the third—silver-tailed with elegant bearing—observed with quiet interest.

  "Hey," the first girl said, hovering nearby with an easy smile. "Mind if we join you? Our usual spot's crowded today with the upperclassmen's club fair setup."

  "Sure," Natsuki said, gesturing to the open space on the ledge. She glanced at Reina with an encouraging look. "Reina, you know Sachi, Fuyu, and Miyuki, right?"

  Reina nodded, feeling the familiar flutter of social anxiety. "Yeah, I've seen you all around."

  "We've been meaning to talk to you," Sachi said—the brown-tailed girl, Reina registered, matching name to face. "Fuyu's really good at research—she helped me track down records about my family's fishing techniques last term. If you need help finding sources, she's your person."

  "I mostly just know how to use the archive system," Fuyu said softly, her blue tail curling in what seemed like embarrassment at the praise, her voice carrying that serene quality that matched her appearance. "But I'm happy to help if you need it."

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  Thank you," Reina said, surprised by the offer. "I might take you up on that. I'm still figuring out how everything works here."

  "You're doing great," Miyuki said, her silver tail catching the light as she moved. Her voice had a melodic quality. "I remember when you first arrived—you could barely swim straight. Now you're keeping up with Natsuki in aquatics."

  "Barely," Reina said with a self-deprecating laugh. "I still crash into things regularly."

  The conversation flowed easier than Reina expected—questions about Earth, comparisons to life here, shared complaints about the heat. The knot of anxiety in Reina's chest slowly loosened. These weren't just faces in her classroom anymore. They were becoming people she knew, people who knew her.

  The afternoon's remaining classes passed in the typical summer haze—Kamitani-sensei's mathematics lesson on calculating current velocities barely registering in the heat, aquatics practice mercifully shortened due to the temperature. By the time the final bell released them, Reina was exhausted, ready to retreat to the pod's relative cool.

  But Natsuki caught up with her near the academy's entrance, moving with purposeful energy despite the heat.

  "Want to come to my place for a bit? Mom's making some kind of traditional sweet—she loves experimenting with kelp-based desserts. Fair warning: they don't always turn out edible, but she tries."

  Reina hesitated, glancing toward the path home. She'd been planning to work on the history project, maybe swim some laps in the practice area. But the thought of spending the afternoon alone in the pod, with just her thoughts and the memorial shelf, suddenly felt unbearable. "Sure," she said. "I'd like that."

  They swam through Shinju's residential sector, taking a different route than the one to the shrine. Natsuki's family pod was larger than Reina's, nestled into a particularly beautiful section of reef where glowing anemones bloomed in clusters. The entrance was marked with a small syntheic wooden plaque, the kanji for "Mori" carved into its surface.

  Inside, the space felt lived-in and loved—woven mats covered every surface, small shrines and offerings scattered throughout, and one wall was dedicated entirely to what looked like family records and old photographs sealed in waterproof cases. Haruna was in the central area, working with some kind of pale green paste and small molds shaped like fish.

  "Natsuki-chan!" she said with a warm smile, then noticed Reina. "And you brought Reina-san. Wonderful! You're just in time to help me test these. I'm attempting matcha-flavored kelp mochi. The matcha is synthetic, of course—we can't grow tea plants underwater—but I think I've got the flavor profile close."

  "Mom's obsessed with recreating Earth sweets," Natsuki explained, swimming to a storage alcove and pulling out what looked like plates—actually flat shells polished smooth. "Most of them are disasters, but occasionally she succeeds."

  "I heard that," Haruna said mildly, but her eyes twinkled with amusement. "Here, try one."

  The mochi was... interesting. The texture was right—soft and slightly chewy—but the flavor was definitely an approximation rather than the real thing. Still, there was something touching about the effort, about trying to preserve these small pieces of Earth culture in an alien ocean.

  "It's good," Reina said honestly. "Different from real matcha, but good in its own way."

  "You're kind to say so," Haruna said, though she looked pleased. "Isao says I should focus on the traditional offerings for the shrine instead of experimenting, but where's the joy in that?" She settled onto a mat, gesturing for them to join her. "How are you settling in, Reina? Truly?"

  The question, asked with such genuine interest, made Reina's throat tighten. "It's getting easier," she admitted. "Some days are harder than others. But I'm making friends, school's manageable, and my swimming doesn't embarrass me quite as much anymore."

  "And your family? Your mother and sister?"

  "Mom's... present sometimes. She's trying." Reina twisted her hands together. "She throws herself into work at the research campus, but lately she's been making more effort to be home for dinner, to ask about our days. It's progress." She paused. "Hana's doing better than I expected. She's made friends, seems less angry about being here. Though she still has her moments."

  "Grief takes many forms," Haruna said gently. "And everyone processes it differently. Ten months isn't very long, really. Be patient with yourselves."

  Isao appeared in the entrance, returning from some errand, moving with his characteristic measured grace. He greeted them warmly, then joined them on the mats, accepting a mochi from Haruna with an expression that suggested he'd been through this experimental dessert process many times before.

  "We were just talking about the history project," Natsuki said. "Taro wants to draw the crashed ship. He asked if he could talk to you about it."

  "Of course," Isao said, his expression thoughtful. "The crash site is actually not far from here—the wreckage was mostly salvaged over the centuries, but there's still a marker.

  "Your ancestor” Reina said, “You mentioned him before—that he was one of the sixteen, that he was important, but the records were damaged."

  "Yes," Isao said, a thread of frustration in his voice despite his calm demeanor. "We've pieced together what we can from oral tradition, from prayers that mention his name, from the shrine-keeping duties that have passed down through our line. It's incomplete, like trying to see through clouded water. But it also drives us to preserve what we have more carefully. Every prayer, every ritual, every story—we record it, we protect it, we pass it on. So that future generations won't lose what we've lost."

  The conversation drifted to lighter topics—upcoming shrine festivals, Kaori's adjustment to married life (Haruto was away again, to no one's surprise), Shimizu-sensei's enthusiasm about the coral spawning field trip. Eventually, Reina realized how late it had gotten, the light through the pod's windows dimming with approaching evening.

  "I should get back," she said, rising from the mat. "Thank you for the mochi. And the conversation."

  "Come back anytime," Haruna said warmly. "You're always welcome here."

  Natsuki swam with her partway back, their tails moving in an easy synchronized rhythm Reina had gradually learned to match. "My parents really like you," Natsuki said as they approached the fork in the path. "Mom especially. She says you have an old soul."

  "I don't feel old," Reina said. "Just tired sometimes."

  "That's probably what she means," Natsuki said with a soft smile. "Here's where I turn off. See you tomorrow?"

  "Tomorrow," Reina confirmed.

  The pod was quiet when she arrived. Aiko sat in the central area, actually present for once, reviewing something on her datapad. Hana was in her alcove, earbuds in, but she pulled them out when Reina entered.

  "Where were you?" Hana asked, not accusatory, just curious.

  "Natsuki's place. Met her parents properly, tried some experimental dessert her mom made."

  "Was it gross?"

  "Only slightly," Reina said with a grin. "How was your day?"

  Hana shrugged, but her expression wasn't as closed off as it used to be. "Fine. Yuuta's being weird. More weird than usual."

  "Weird how?"

  "I don't know. He keeps trying to talk to me alone, but then he just stutters and swims away. It's annoying."

  Reina bit back a smile, thinking of Natsuki's observation at lunch. "Maybe he's trying to tell you something."

  "Then he should just say it," Hana said with typical bluntness. "I'm not a mind reader."

  "Maybe give him time," Reina suggested. "Not everyone's as direct as you."

  "His loss," Hana muttered, but her tail twitched in a way that suggested she was more curious than annoyed.

  That evening, the synthesizer hummed as it produced their dinner—kelp wraps with fish paste that Aiko had finally learned to season properly, making them almost palatable rather than just nutritious. They ate floating around the central area's low table, a configuration that had become their routine, though it still felt strange compared to Earth's solid chairs and gravity-bound meals. The food was familiar now, if not exactly enjoyable—a marker of how much had changed, how much they'd adapted without quite noticing.

  Aiko set aside her datapad, actually engaging in conversation rather than hiding behind work.

  "I got a message from the research campus," she said. "They want me to lead a team studying the coral spawning next week. It's a significant opportunity—the data could help us understand reef health patterns, predict environmental stresses."

  "That's great, Mom," Reina said, meaning it. Aiko thrived when she had something to focus on, and this was better than her previous isolation.

  "It means I'll be gone more next week," Aiko continued, something apologetic in her tone. "Late hours, early mornings. But I wanted you both to know, not just disappear."

  "We'll survive," Hana said, but without her usual bite. "You should do it."

  Aiko's expression softened, a rare vulnerability showing through. "I know I haven't been... present. Since your father died. I've been hiding in work, avoiding..." She gestured vaguely. "Everything. But I'm trying to find a balance. Between honoring him and moving forward. Between my career and my family." She looked at both of them. "I'm not there yet. But I'm trying."

  Tears pricked Reina’s eyes. "We know, Mom. We see it."

  "Dad would want you to work," Hana added quietly. "He always said you were brilliant. He was proud of you."

  Aiko's eyes shone with unshed tears. "He was proud of all of us." She reached out, drawing both girls into an awkward floating embrace, their tails tangling together. "We're going to be okay. Eventually."

  "Yeah," Reina whispered into her mother's shoulder. "We are."

  The next few days fell into a comfortable pattern. Classes with Takahana-sensei and Shimizu-sensei, lunch with Natsuki, Taro, Yumi, and occasionally Fuyu, Miyuki, and Sachi, aquatics practice where Reina's skills continued their slow but steady improvement. She started working on her history project with Natsuki, combining their perspectives—Earth memories and Shinju heritage, recent arrival and generations-deep roots.

  One afternoon, Taro appeared at her desk before class with his sketchpad. "Can I show you something?" he asked quietly.

  "Of course."

  He opened the pad to a detailed drawing—the crash site, rendered in careful strokes. The ship was half-buried in coral, its hull torn open, water flooding through breaches. But around it, he'd drawn figures—merfolk, newly transformed, working together to salvage equipment, to build the first structures. And in the foreground, a single figure before what looked like a makeshift shrine, hands clasped in prayer.

  "That's supposed to be Takeshi Mori," Taro said. "I don't know what he actually looked like, but Isao told me he kept the survivors organized. So I imagined him like this—someone who carried the weight of leadership but found strength in tradition."

  The figure in the drawing had a quiet dignity, a sense of bearing responsibility with grace. Something about it reminded Reina of Isao—the same measured calm, the same sense of duty.

  "It's beautiful," Reina said honestly. "Are you going to show Natsuki's family?"

  "Already did," Taro said, a rare smile crossing his face. "Isao said it captured something true, even if the details are imagined. That's all I wanted—to honor them, even if I can't know them."

  "I think you succeeded," Reina told him.

  Taro’s drawing lingered in Reina’s mind as she swam home. She thought about Isao's lost records, about her own father whose memory was still sharp but would inevitably fade with time. They all carried pieces of the past—some clear, some clouded, all precious.

  In the pod, she added a small shell to the memorial shelf beside her father's omamori. Another offering, another marker of time passing and life continuing. Ten months. Three months here. The numbers meant something, even if she wasn't sure what yet.

  But today had been good. Today she'd had lunch with friends, visited Natsuki's family, seen her mother try to be present, watched Hana almost-smile when Yuuta's name came up. Small, ordinary things.

  The kind of things that built a life.

  Outside, Shinju's radiant blooms pulsed their steady rhythm, and somewhere in the distance, the shrine's lanterns glowed like promises waiting to be kept.