The Greatest Teacher

On graduation day, a teacher is pushed over a railing — and awakes to find herself back on the first day of school in a classroom full of suspects.

Rina's husband requests a divorce, but unlike the previous time, she resolves to learn exactly why. Later, two masked figures attempt to mug her.

Rina receives a death threat for the first time. Her students try to find out who did it, but she quickly identifies and confronts the culprits.

Ren has an unexpected reaction to Rina's revelation. Ugumori bonds with her new friends, irritating Nishino. Rina gives a prescient warning to Enami.

Rina appoints the eccentric Mizuna to be in charge of an event at the school festival in a bid to avoid the disaster that befell it the first time.

Kochiya runs off before Ugumori can respond to her sudden confession. Later, Rina and Ugumori discuss their peculiar shared experience.

In the wake of the tragedy, Rina blames herself for being unable to change fate. After receiving some encouragement, she returns to face her class.

Rina's students turn their suspicions toward Sagara and confront him about his connection to Hamaoka. Sagara makes a stunning statement.

Hamaoka reveals who asked him to come to school that fateful day. Later, when some students are absent from class, Rina dashes out in search of them.

On graduation day, Rina confronts the person who pushed her one year prior and finally learns the truth about everything that has happened.