SSIS-869 Secretly having sex with her boyfriend when the whole family is away

Rei Kuroshima is a dynamic music college student, only familiar with the world of music. She experiences a life she did not choose and things she has never gone through... her first work! (1) The first time having sex with a teacher at school (2) The first time having sex with a teacher at school (3) The first time having sex while working part-time (4) The first time having sex with restraint toys (5) The first time having a threesome. I juggle a lot in this unknown world. A beautiful woman, too elegant, forgets her status and enjoys having sex. Goodbye to my life in music.