Honkai Star: Rail x Reader Oneshots

"I won't give up on us, even if the skies get rough" | Aventurine x Reader

Summary: You have been hiding a lifelong condition, Hanahaki Disease, from Aventurine. Though the disease isn't caused by unrequited love, it still manifests in the form of flowers growing your lungs. As Aventurine becomes more clingy and concerned about your health, you finally confess the truth. Aventurine, feeling a mixture of guilt and concern, vows to support you through your condition, offering comfort and care.

Tags: Aventurine x Reader, Hanahaki Disease, Chronic Illness, Fluff, Comfort, Emotional Support, Angst (with a fluffy ending), Established Relationship, Relationship Growth, Vulnerability, Healing, Sweet Moments, Caretaking

Warnings: Mild illness (Hanahaki Disease), mention of chronic conditions, light angst, feelings of guilt and concern, unrequited love not being the cause of the condition.

The morning sunlight filters through the curtains, casting soft, golden hues across your shared living space. Aventurine stands in the kitchen, flipping through a deck of cards absentmindedly, his gaze shifting occasionally in your direction. You’ve noticed how his attention seems to linger on you lately, how his glances feel like they carry a silent question he hasn’t yet voiced. And though he’s always been affectionate, his recent clinginess has you wondering if something’s on his mind.

Today, after all the little moments of unspoken worry and his fingers brushing your arm a little too often, you decide to bring it up.

"Aven, love,” you begin gently, meeting his gaze, “Is everything alright? You’ve been...extra close lately."

He hesitates, his ever-present smile faltering just slightly. "Ah, am I really that obvious?" He chuckles, but there's a hint of nervousness behind it. "It’s just...I couldn’t help but notice you’ve been coughing a bit more lately."

You freeze for a second, feeling your heart quicken. You’d tried so hard to hide your condition from him, carefully coughing petals into tissues, tucking them away when he wasn’t looking. Your condition was a lifelong burden, not caused by any recent heartache but simply part of who you are. But now it’s clear he’s been noticing more than you realized.

“Aven, it’s not... It’s not what you think,” you say softly, reaching out to take his hand. “I know what you’re thinking—that it might be because of you. But it’s not. It’s something I was born with.”

For the first time since you’ve known him, Aventurine’s confident composure breaks entirely. He stares at you, brows furrowing, genuine worry and perhaps a bit of guilt swimming in his eyes. "You mean...this wasn’t something recent? You’ve...you’ve had it all along?”

You nod, squeezing his hand. "It’s always been there. The doctors don’t know why, but it’s just a part of me. I didn’t want to worry you, so I hid it."

He exhales, visibly relieved but still concerned. “You shouldn’t have hidden something so big,” he murmurs, brushing a hand through your hair, fingers gentle and affectionate. “I... I hate thinking of you going through that alone.”

His tone is soft, filled with a depth of emotion you rarely hear from him. "I just wanted things to feel normal," you whisper, resting your forehead against his. "But lately... it’s been harder to hide. I didn’t want you to think I didn’t trust you."

For a moment, he’s quiet, his hand slipping down to cradle your face, his thumb tracing gentle patterns against your cheek. “I’ll help you through this. You’re not alone in this anymore, you hear me?” His voice is resolute, his determination clear.

A small, hesitant smile finds its way onto your lips as you nod, feeling the weight of your secret lighten. “You really don’t have to...”

“Oh, but I do,” he insists, pressing a soft kiss to your forehead, then your nose, and finally your lips. “I’m already envisioning ways we can handle it together. I’ll bring you tea every morning, make sure you rest more, and maybe bring a few cards to distract you when things get rough.”

You laugh softly at his playfulness, feeling an overwhelming sense of love and gratitude. The tenderness in his eyes, the way he’s looking at you—it’s as if he’s promising to take on part of this burden just to keep you smiling.

“I’m lucky to have you.” you murmur, wrapping your arms around him.

He smiles, holding you close, his voice a gentle whisper in your ear. "And I’m lucky to have you, petals and all."

With Aventurine by your side, you realize that even the things you once saw as burdens feel a little lighter. The two of you, together, find comfort in each other’s embrace, knowing that no secret or struggle can stand between the love you share.