DASD-907 My throat has become so sensitive from deepthroat training that I'm going to suck my mentor today. Winter Love, what's up?

Film Introduction

- Taichi and Kotone, who have been dating since school days, are now college students living together. Kotone majored in biology, but she wasn't keeping up with her studies at university, and if she got a red mark, she was told that she would be repeating a year. Kotone, who was unable to talk to her boyfriend, reunites with his former teacher from school.