Rika, who married an elite husband, was often pressured by her mother-in-law, Yone. "If your child fails the entrance exam, it's your responsibility, you know, since you only graduated from vocational school." Rika, who was subjected to too much pressure, was obsessed with the entrance exam. One day, the doorbell rang, and when she opened the door, there was a salesman with an unsettling smile. Rika, seduced by the sweet words, "Isn't there anything I can help you with? Like... your child. My product will help you," was gradually brainwashed...