During summer break, schoolgirl Setsuna experiences a series of perverted encounters that gradually pull her into a world of sexual awakening. Called in by her homeroom teacher for a routine uniform inspection, the check escalates until she's forced to touch the teacher's genitals. Next, her gym teacher punishes her for violating school rules by shaving her pubic hair and subjecting her to intense vibrator torture. After enduring a day of relentless humiliation, Setsuna returns home only to face further sexual punishment from her father, who overpowers her resistance and forces her into even more lewd acts. Through these traumatic experiences, Setsuna's body slowly begins to awaken to sexual pleasure... (Lotus Plan)