"M...Mina?" Rin whispered, the name barely scraping past his throat.
The girl, the female lead, no, his sister... sat cross-legged on the infirmary bed, grinning at him like she hadn't just shattered the rules of time, space, and the fucking genre.
"What's up, Myungie!" she chirped again, waving with all the smugness of someone who'd just beaten a boss level without trying.
Rin blinked once. Then twice.
No. No, no, no.
He yanked the curtain fully shut behind him, peeking around it like a guilty thief to make sure none of the nurses were nearby. The coast was clear. Just the soft ticking of the wall clock and the gentle hum of magical equipment.
Turning back to her, Rin stepped closer, slowly, cautiously, like she was a wild beast.
Mina's grin widened, and she opened her arms like she expected a hug.
Rin's response?
He shoved two fingers in her mouth and yanked her hair.
"Mmmmph... MMMGHHH!!" she screamed into his hand, eyes wide.