The monster of 1st grade, class A.
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Jiro Jimi, a reserved and unassuming male teacher, is assigned to the notorious Class 1-A at Suezono Girls’ High School, a group of delinquent students known for driving away teachers in mere days. On his first day, he faces immediate hostility, particularly from Momo Hananaka, a popular model who orchestrates a malicious scheme to frame him for misconduct. Jiro’s exceptional diligence and unyielding commitment to his role as an educator allow him to confront the class’s manipulative tactics head-on. Among the students, Yuri Kurosaki emerges as a cunning leader behind the class’s cruel pranks, testing Jiro’s resolve. Through his earnest approach, Jiro begins to challenge the toxic dynamics of the class, setting the foundation for a battle of wits and redemption.