小悪魔教師サイコ (Series) favorite_border

[DeepL Translation - needs review] Introduction to Volume 1: A beautiful new teacher, Ms. Kasai, arrives in a devastated classroom. In fact, the previous homeroom teacher was hospitalized after attempting suicide due to bullying by a student. She smiles and says, "I became a teacher to make the students happy," but the bullies begin to harass her insidiously. However, the students did not yet know her true nature. ...... Kasai-sensei is a psychopath!

(Translator: DeepL)