I accidentally catch Hikaru, a slender and demure new teacher, secretly engaging in exhibitionism in the staff room. This popular, beautiful teacher, well-liked by her students, had been removing her suit and taking selfies in her underwear where no one could see. Timing it when the room was completely empty, she strips fully naked and begins bold exposure right in the staff room. She reaches for her wet pussy and erect nipples, completely absorbed in masturbation. Caught on a smartphone with a protruding lens capturing her lewd actions, overwhelmed by a mix of embarrassment and arousal, she repeatedly performs erotic acts—licking and sucking her own cock. Her body trembles each time she receives cunnilingus, her sensitivity heightening until she reaches climax. With a fully aroused, submissive expression, she fondles her cock while pressing close, moaning lewdly in the staff room as Hikaru-sensei experiences the ultimate pleasure.