Mochizuki Tsubomi is a cute, honor-student high school girl with a "constant smile." However, in reality, she's a mean girl who "desires other people's things." She goes to a private tutor, but when she finds out that her tutor is about to get married, her desires suddenly return and she starts seducing him. Realizing the danger, the tutor's younger brother tries to stop her with a hypnosis app, but... Always Smiling Pussy Brainwashing Lessons: You always make fun of me, saying I stink, so...