[Naitama (Isako)] Yakumo and Yusuke

Yakumo insists he's the long-suffering one here — Yusuke is the clingy boy trailing him through hallways and up stairwells every single day — but privately he's already admitted that being followed has become the best part of his routine. Between classmates teasing him about whether anything has happened with Takayama, a raided dresser drawer that earns Yusuke a threat of a slap, and the slow collapse of his one-in-a-million denial into something far more one-in-a-billion, the prickly schoolboy's deadpan armor never stands a chance. The payoff is a blushing, breath-stealing kiss between two boys left in nothing but their underwear, small hearts and all, and it makes every step of the slow burn worth it.