Honkai Star: Rail x Reader Oneshots

Life's little gambles | Aventurine x Teen!Reader

Summary: The Astral Express crew makes a stop at an IPC station where you, a member of their team with a dark and strategic past, encounter Aventurine, one of the Ten Stonehearts. Aventurine recognizes your shared experiences and offers wisdom about embracing your new path while acknowledging the allure of your past. Your conversation leaves you reflecting on your journey and the power of choice.

Tags: Aventurine x Reader, Teen!Reader, Found Family, Hurt/Comfort, Emotional Conversations, Mentorship, Self-Reflection.

Warnings: Mentions of past trauma, Themes of loneliness and inner conflict.

The hum of the Astral Express served as a soothing constant against the ever-shifting backdrops of the universe. Aboard the train, the crew was abuzz with their usual activities: March 7th snapping photos, Dan Heng engrossed in research, Himeko brewing her signature coffee, and Welt poring over galactic maps. Among them was you, the newest addition to their family. A teenager with a past as jagged and raw as a broken mirror, you were still finding your footing among these kind strangers.

Your quiet demeanor and strategic mind had piqued their interest, but it was the fractured look in your eyes that truly bound you to their hearts. You’d shared snippets of your history—a harsh upbringing in a desert-like world, gambling with your survival, and the scars that came with being a pawn in someone else’s cruel game. Himeko had been the one to coax out these stories during quiet nights over tea, while March sought to draw out your smile through her infectious energy.

Today, however, the Express made an unexpected stop at an IPC station. The platform gleamed with opulence—gold-trimmed structures, bustling workers in sharp suits, and the distant sound of a roulette wheel spinning somewhere. It was there you met him: Aventurine.

He was hard to miss. Standing tall with his hair swept back, eyes scanning the station with a mix of boredom and sharp calculation, Aventurine looked every bit the enigma his reputation promised. He spotted the Express crew almost immediately, his gaze lingering on you for a second longer than the others.

“Astral Express,” he greeted smoothly, his voice like a velvet gamble. “It’s not every day you cross paths with one of the Ten Stonehearts.”

March tilted her head, a mixture of curiosity and suspicion evident in her expression. “Ten Stonehearts? That sounds… important.”

Himeko, always composed, stepped forward. “A pleasure, Mr. Aventurine. To what do we owe the honor?”

Aventurine’s lips curled into a faint smirk. “Just business as usual. But…” His eyes returned to you, sharp and knowing. “You… You have the look of someone who knows how to play the game.”

Caught off guard, you stiffened, unsure of what to say. It wasn’t often someone recognized the shadow of your past so quickly.

Dan Heng, ever protective, subtly stepped closer to you. “Do you know each other?”

“Not yet,” Aventurine said, his tone light but laced with intrigue. “But I see the marks of the same battlefield. Life hasn’t been kind to you, has it, kid?”

Your breath hitched. How could he see through you so easily? You glanced at Himeko, whose reassuring nod gave you the courage to respond. “No… it hasn’t. But I’ve found a better path now.”

Aventurine chuckled, a sound both amused and bitter. “Good for you. Most of us aren’t so lucky. Tell me, though—do you ever miss it? The thrill of the gamble, the rush of defying fate?”

For a moment, you hesitated. The truth was, you did—sometimes. The chaos of your past had been painful, but it had also been exhilarating in its own twisted way. Before you could answer, Aventurine stepped closer, lowering his voice so only you could hear.

“Let me guess,” he murmured. “They saved you from the abyss. But there’s a part of you that wonders… what if you had learned to swim instead?”

The rest of the crew had stepped away, giving you space to talk. Aventurine leaned against a railing, his gaze never leaving yours.

“I’m not trying to pull you back,” he said, his tone uncharacteristically soft. “But I know what it’s like to live with those questions. To wonder if you could’ve played your cards better.”

You frowned, crossing your arms. “And what about you? Are you happy with where you ended up?”

Aventurine tilted his head, his enigmatic smile returning. “Happiness is… a luxury. But power? Control? Those I’ve earned. The IPC is my table, and I always leave with the house’s winnings.”

You studied him, torn between admiration and pity. “That sounds… lonely.”

“It is,” he admitted, surprising you with his honesty. “But it’s better than being someone else’s pawn. And you—” He pointed a gloved finger at you, his eyes alight with intensity. “You’re not a pawn anymore. Don’t forget that, no matter how tempting the old game gets.”

His words lingered with you long after he bid the crew farewell. As the Express pulled away from the station, you sat in the lounge, staring out at the stars. Dan Heng approached, his presence steady and grounding.

“Are you alright?” he asked.

You nodded, though your thoughts were far away. “Yeah… I think so.”

And for the first time in a long while, you felt a strange sense of peace. Aventurine’s words had stirred something in you—a reminder that while the past might always call, you had the power to decide your future.

From the station platform(?), Aventurine watched the Astral Express disappear into the cosmos. A rare, genuine smile crossed his face.

“Good luck, kid,” he murmured to the stars. “Play your cards right.”