Honkai Star: Rail x Reader Oneshots

"Today, you're me and I'm you" | Aventurine, Ratio, Boothill, Sampo

Tags: Aventurine x Reader, Ratio x Reader, Boothill x Reader, Sampo x Reader, Platonic, Body Swap, Humor, Chaos, Identity Confusion, Transformation.

Warnings: Mild language, Slight violence(?), Confusion and identity crises, Possible mild awkwardness from body swap dynamics, Some references to body-related discomfort, Potential for humorously exaggerated reactions to new forms.

Aventurine

Aventurine never expected the day would come when his flawless, sophisticated appearance would be swapped with someone else, especially not with you. One moment, he was standing tall in his usual impeccable outfit, the swish of his coat echoing his poised elegance, and the next, he was you—dazed, confused, and staring down at an unfamiliar set of clothes.

The first thing Aventurine noticed was how strange the sensation of your body was. It was… compact, not the tailored form he was used to, and the clothes? The fabric didn’t fit him properly. He could feel his heart race as the disorientation set in, something he was not accustomed to.

You, on the other hand, stood in Aventurine’s body, completely overwhelmed by the sophisticated cut of the clothing that clung to his frame. The peacock feather glimmering in the hat, the soft thrum of anticipation in his chest—his body seemed to hum with a strange energy. Even his glasses—rose-tinted—felt like an alien accessory on your face.

In his new body, Aventurine felt the power of his manipulative charm. The confidence that had always been there, hidden beneath a smile, now flowed effortlessly. He stood straighter, the sharp wit in his mind already beginning to work. He gave you a charming grin. “It seems that fate has decided to have a bit of fun,” he said, his voice smooth and playful, though his usual cryptic flair seemed less effective in this unfamiliar form.

You couldn't help but chuckle, noticing how his charismatic aura still somehow seeped through, even in his temporary state. “This is… odd, but not completely unbearable, is it?”

Aventurine’s lips quirked, “Strangely… no. But I wonder how you’ll fare with my usual responsibilities?”

The two of you were forced into roles you never would have imagined for yourselves—he in your body, you in his. As the day wore on, Aventurine quickly adapted, using his newly acquired form to charm his way through meetings and strategic discussions. He realized how much of a game his life was. But it was your mind that guided his movements, your hand that touched the fabric of his destiny. And for a fleeting moment, he wondered how it felt to live without always having to manipulate the outcomes.

Meanwhile, you—now in Aventurine’s body—fumbled through things that were second nature to him. But there was an odd comfort in the sheer elegance of his every action. You realized something deep about him—the effortless way he controlled and guided people with nothing but his presence.

It was a strange experience, a dance between you both as you swapped the roles of puppeteer and puppet, your understanding of each other shifting in ways you hadn’t anticipated.

Dr. Veritas Ratio

It didn’t take long for Ratio to realize that something wasn’t right. One moment he was basking in the glory of his intellect, dictating profound ideas about the importance of eradicating ignorance and spreading knowledge across the universe, and the next, he was—well, you. A flurry of thoughts rushed through his mind, as his expert control over his own body was suddenly gone.

The disorientation was almost maddening for someone so precise in both mind and form. He blinked—your eyes were not his, yet they still glowed with the same fiery determination that burned in his own. But it was the body that truly threw him off: clumsy and strange, foreign yet intimately yours.