Riku, a member of the light music club, is a lesbian who is secretly in love with her female teacher, Mirai. One day, Mirai finds Riku doing a club activity that is prohibited during the test period and warns him to go home and study, but Riku doesn't listen to her and instead tells him to go home and study. I suggest that "Mirai" become my tutor... [*There is some disturbance in the image and sound]