Rem knows nothing. At that time, she remembers, but the next day, she forgets everything. Not only her brother, but also his friends and classmates take advantage of her losing her memory in 24 hours and are violated. It's sad, but it's your fault for having such a cute doll-like face and a miraculous beautiful slender body. The record of the seven days that passed in an instant where tears and endurance juice could not stop.
