I am a newly graduated pedagogy student. This time I will return to my previous high school to practice. In the teacher's room, I encountered a female student being scolded. That student is Hikaru, it seems this student is quite "mischievous". It seemed like Hikaru also noticed me, she even deliberately came to talk to me. Hikaru made an appointment to meet me to share her worries about family matters. Because it is a teacher's responsibility to care about students, of course I agreed. But the only thing is, Hikaru wants to talk to me in... the hotel where I'm staying! And then, the forbidden relationship happened. I know this is unforgivable, but I can't resist Hikaru's charm. A beautiful face like an angel, an innocent smile, and superb sexual skills made it impossible for an inexperienced person like me to escape...