Ijiwaru Shinai de

Through sheer emotional persistence and a few well-timed tears, Katou finally convinces Serizawa, the upperclassman he has long admired, to enter into a relationship with him. However, Katou makes a solemn vow to himself: he will not make any physical advances until Serizawa genuinely returns his feelings. Bound by this promise, their romance remains strictly platonic, built on quiet devotion rather than physical intimacy as Katou patiently waits for his senpai's heart to truly open. The fragile boundaries of their arrangement are suddenly tested when Serizawa unexpectedly arrives at Katou’s home for a sleepover. Rather than maintaining the safe distance they have established, Serizawa initiates an intimate moment, inviting Katou in for a kiss. This sudden shift pushes Katou’s carefully maintained self-restraint to its absolute limit. Confronted with Serizawa’s unexpectedly alluring expression and willing vulnerability, Katou finds his ironclad resolve crumbling, leaving him struggling to uphold the very promise he swore to keep.