Kishiwada, a renowned fighter in his school, harbors a peculiar vulnerability: his nipples trigger intense sensitivity, leaving him physically incapacitated and aroused if touched. This peculiarity stems from his childhood friend's playful interference. When the friend, Andou, reenters his life, chaos ensues as Andou's affections for Kishiwada resurface, despite Kishiwada's reluctance to reciprocate. Complicating matters further, a stalker from Kishiwada's past emerges, also harboring unrequited love for him. As Kishiwada navigates these intricate relationships, his past and present collide in unexpected ways.