
Kumiko "Yankumi" Yamaguchi enters Shirokin Gakuen Private School to become a math teacher. She's assigned as the homeroom teacher for class 2-4, populated by a gang of delinquents. At first, the class tries everything to rattle her cage, but to no avail. In a short period of time, Yankumi gains the respect of the class. But what the school doesn't know is that she's the heir to the Oedo Group, a powerful Yakuza clan. So while Yankumi struggles to excel in her career as a teacher, she must also keep her Yakuza background a secret.
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Last updated 6/6/2026
Rows are episode numbers, columns are seasons. Every rated cell shows its numeric score.
Weighted episode-level summaries calculated from the configured ratings source.
Best episode
S1E13 Yankumi's Final Duty (7.8)
Consistency score
95/100
Std dev 0.25
Rated episodes
13
147 total votes
Each point is a rated episode. Hover or focus a point for episode details.
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