Watari-kun's ****** Is about to Collapse

Naoto Watari has narrowed his life to a single purpose, which is looking after his younger sister Suzushiro. The series begins when Satsuki, a childhood friend with no interest in his routines, reappears and refuses to leave. She says very little at first; her presence alone is enough to bring back things he had arranged his whole life around not thinking about.

The series runs 26 episodes and has finished airing. It is a drama with comedic edges rather than a straight romance, and the tension comes from how tightly Naoto has structured his life and how little pressure it takes to crack it.

Expect a slow-building story about family obligation, memory, and the difference between caring for someone and hiding behind them. The cast is small and most scenes are conversations rather than set pieces. The full episode list with original air dates is below, along with the platforms currently streaming it.