Watch The Greatest Teacher

2025
1 Season

Kujo Rina is a chemistry teacher and the homeroom teacher for the 3rd grade D class at Horai High School. She doesn't have a bond with her students. On the school's graduation day, Kujo Rina is pushed from the 4th floor and falls down. She is able to glimpse a school uniform sleeve on the person that pushed her. At that time, she wonders why she was pushed and that she does not want to die.

The next moment, Kujo Rina is standing in front of her students, and she has travelled back in time to one year earlier. She knows that one of the 30 students in front of her will try to kill her in a year. To find the truth about what will happen and to avoid her death, she approaches her students with all her heart. Meanwhile, Ugumori Kanau is one of Kujo Rina's students in the 3rd grade D class. She is a model student, but she experiences a miserable school life due to her classmates targeting her.

The Greatest Teacher is a series that ran for 1 seasons (10 episodes) between November 26, 2025 and on Nippon TV

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Seasons

10. Episode 10

September 16, 2023

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

9. Episode 9

September 9, 2023

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.

8. Episode 8

September 2, 2023

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

7. Episode 7

August 26, 2023

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.

6. Episode 6

August 19, 2023

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

5. Episode 5

August 12, 2023

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.

4. Episode 4

August 5, 2023

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

3. Episode 3

July 29, 2023

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.

2. Episode 2

July 22, 2023

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.

1. Episode 1

July 15, 2023

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.

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Where to Watch The Greatest Teacher

The Greatest Teacher is available for streaming on the Nippon TV website, both individual episodes and full seasons. You can also watch The Greatest Teacher on demand at Netflix.