Teacher Tsubomi works at an elite private school attended by spoiled rich brats. The parents' association holds significant influence as major financial sponsors of the school's operations. As a new teacher, Tsubomi strongly opposes the principal's self-serving attitude and, driven by her sense of educational justice, slaps one of the misbehaving students, causing shockwaves throughout the campus. In response, enraged parents force her to sign a "complete obedience" contract, completely transforming Tsubomi's daily life—thus begins her harsh life of brutal domination.