[Jirouan (Sakujirou)] Saki and Mika [Kyuume]

Hamura Mika, second-year girls' volleyball captain, wakes up to a body that no longer follows the rules—and before she can even process the shock, she's passed between eager classmates who discover just how submissive the former captain becomes once things heat up. Meanwhile childhood friend Aizawa wrestles with the rumor that Mika isn't the girl he grew up with anymore, and a tense after-school talk reveals she has grown closest to Yanase—with the two of them possibly dating. A bonus chapter closes the loop on Saki and Mika, where hormones, injections, and stubborn devotion turn years of friendship into something neither of them ever planned for.