Saishuu Kyoushi

A school has largely abandoned traditional education, allowing students to operate with minimal oversight. After student violence became severe, the school was forced to hire former inmates as teachers. A new instructor, Ganpachi, arrives with the goal of restoring discipline by intimidating Hinako, the dominant gang leader. Despite struggling to resist his influence, Hinako relies on her belief in a pair of lucky gym pants. Ganpachi's unusual resilience and behavior may be linked to his escape from a genetic research facility.