Watari-kun no xx ga Houkai Sunzen
English title: Watari-kun's ****** Is about to Collapse
Japanese title: 渡くんの××が崩壊寸前
Alternative titles: Watari's XX Is on the Brink of Collapse, Watari-kun's ****** Is about to Collapse
Type: TV
Source: Manga
Status: Currently Airing
Aired: Jul 5, 2025 to ?
Broadcast: Saturdays at 01:00 (JST)
Duration: 23 min
Rating: PG-13 - Teens 13 or older
Studios: Staple Entertainment
Producers: Kodansha, DAX Production, NBCUniversal Entertainment Japan, Tokyo MX, Crunchyroll, BS NTV, ADK Marketing Solutions
Genres: Comedy, Drama, Romance
Themes: School
Demographics: Seinen

Two years ago, the death of Naoto Watari's parents left him as the sole caretaker for his younger sister Suzushiro "Suzu" Watari and forced him to move in with their aunt. So devoted is he to Suzu that he refuses to join clubs or even hang out with anyone, earning him snide comments and the title of "siscon" at his new school. But as long as Suzu is safe and happy, Naoto does not care what everyone else says.

However, his sneering classmates may turn out to be the least of his worries. The sudden transfer of a girl named Satsuki Tachibana brings back traumatic memories from his past—a past she had a hand in making so unpleasant. Nasty secrets, unknown to Naoto, begin to surface with her arrival, threatening his new life. 

[Written by MAL Rewrite]