Honkai Star: Rail x Reader Oneshots

Dan Heng Imbibitor Lunae x Reader

In the quiet, galactic space of the Astral Express’s observation room, you find Dan Heng standing alone, his form ethereal and strong, back turned to you. In his Vidyadhara form, he appears almost otherworldly—a being of dragon heritage with sharp features, midnight-black hair that fades to teal, and curled horns casting shadows on the walls. His clothes, a blend of warrior regalia and quiet elegance, reflect both his heritage and his inner conflict.

You hesitate at the doorway, admiring the serene yet guarded figure before you. He knows you’re there—Dan Heng is never unaware—but he says nothing, his gaze fixed on the stars beyond the glass. In the silence, the space between you feels almost sacred, as if speaking would shatter it.
Taking a deep breath, you step forward, daring to approach him. “Dan Heng?” you say softly.

He glances at you, eyes a striking, vivid green that glow faintly in the dim light. For a moment, his gaze flickers with emotion—something raw, buried deep within. But he holds it back, as he always does, his face returning to the composed expression you know so well. “You should be resting.” he murmurs, though there’s no admonishment in his tone.

You can’t help but give a small smile. “I couldn’t sleep. And… it seemed like you could use the company.”
For a moment, he says nothing, but his silence is answer enough. Slowly, he nods, turning his face back to the galaxy. Encouraged, you come closer, standing beside him as the two of you gaze out into the void. His presence is calming, yet electric; you can feel the restrained power within him, the weight of his lineage and the memories he hides.

“You don’t talk about it much.” you say quietly, unsure if he’ll answer.
He tenses slightly, but doesn’t move away. “There isn’t much to tell.” he replies, though you sense the reluctance in his words.

“Even if it’s just with me?” you ask, heart pounding as you reach out to him, your fingers brushing against his hand.
For a moment, he remains still, as if deciding whether to let you closer. But then, slowly, he turns to face you fully, his hand slipping into yours. His eyes are intense, searching your face for something, perhaps reassurance or understanding. It’s as though he’s teetering on the edge of something—vulnerability, maybe, or trust.
“Being here, with you…” he murmurs, voice low and filled with an emotion he can’t quite conceal, “makes me wonder if there’s a part of myself that I could share, that isn’t… tainted by the past.”

His words stir something deep inside you, a mixture of empathy and a need to bridge the chasm he keeps between himself and everyone else. You reach up, your fingers lightly tracing his cheek, his skin warm beneath your touch. “You’re not defined by what’s happened. You’re allowed to want more. To want someone.”

Dan Heng’s eyes search yours, his breathing shallow as he lets your words sink in. Then, his hand lifts, his fingers ghosting over yours as he draws you closer. His forehead rests against yours, a sigh slipping past his lips, as if he’s finally allowing himself to let down his guard.

The moment stretches, filled with a quiet tension. Then, his lips meet yours, soft at first, cautious. But as you press closer, a new urgency fills the air, the kiss deepening as he lets go of his restraint, just for you. His hand slides up to cradle the back of your neck, his fingers gentle yet firm, drawing you in as his lips part, inviting you further.
It’s then that you feel it—a faint, unfamiliar sensation against your tongue. You realize it’s his split Vidyadhara tongue, a delicate, serpent-like touch that’s both unfamiliar and thrilling. A shiver races down your spine as he explores, his breaths growing unsteady. The unique feel of his split tongue intertwining with yours is mesmerizing, an intimate act that seems to bare the quiet vulnerability he keeps hidden from everyone.

Dan Heng’s hands settle at your waist, his hold tightening as he pulls you flush against him. Each movement is tender, filled with a longing he rarely lets himself indulge. His lips trace yours, slow and deliberate, as though memorizing the shape, the feel of you. His breath mingles with yours, each exhale carrying the unspoken desire he’s kept buried.
For a moment, he breaks the kiss, his forehead resting against yours once more. His vivid green eyes meet yours, softened by an emotion that words can’t quite capture.

“You make me feel…” he murmurs, voice barely audible. He trails off, as though he can’t bring himself to finish, but his expression says enough. In his gaze, you see it all—years of solitude, of battles fought and regrets carried, all melting into the gentle warmth he shares with you now.
His lips find yours again, this time with a sense of urgency, an unspoken promise. His split tongue brushes against yours once more, sending a thrill through your senses as he pulls you closer, his hands sliding down your back, grounding you against him.

In that moment, the walls he’s built around himself crumble just a little more. Dan Heng, the stoic guardian, allows himself to be vulnerable, to be human, if only with you. And as he holds you, lost in the quiet intimacy of the moment, you realize just how deeply he feels for you, even if he may never find the words to say it.