The story opens in a middle school classroom. The teacher, Yuko Moriguchi, delivers a final lecture to her rowdy students on the last day of the term. As the students grow rowdy, she silences them with a calm, terrifying announcement: her four-year-old daughter didn't die in an accident as previously believed; she was murdered by two students in that very room.
The cast delivers impressive performances, bringing depth and nuance to their characters. Tadashi Okuno shines as Tomohiko Mizuki, conveying a sense of eerie calmness and remorse. The supporting cast, including Shota Meguro and Koyuki, also deliver strong performances, adding to the film's emotional impact.
"One, two... Happy birthday to you."