[cyclosabacane (sabacane)] Sogyoushiki no Yoru + Denshiban Omake Kakioroshi ~Ofuroba Hen~ | Graduation Night + Bonus ~Bathroom Edition~

On a night of graduation, a shy schoolgirl in her uniform discovers a secret video call that leads her into an intense encounter with her older boyfriend, whose aggressive bite marks and relentless thrusts leave her both embarrassed and overwhelmed. The tension escalates as she alternates between protest—"This feels so wrong"—and involuntary pleasure, highlighted by the distinctive tickling sensation and the sensation of being marked inside. The story blends the innocence of a graduation celebration with the raw, intimate dynamics of a forbidden relationship, culminating in a climactic release that redefines their bond.