Yu Kaga is a college student and a virgin. To change his life by learning about women through losing his virginity, he's come to the red light district. However, he's too scared to enter a brothel... And, there seems to be someone watching him from a window in the building across the street... From his phone, he learns of a mysterious group called sfr9...
Then... in a different place, during the morning rush hour on a train, is Tomoko Nakayama, an office worker (and not a virgin). She also has a sexual problem she can't tell anyone about. She wants to be touched and molested on the train just like when she was a student... Even though both of them appear to have nothing in common, group sfr9, which is full of handsome male staff members, beckon them to join. Are these men the friends or enemies of women? Will Yu Kaga be able to pop his cherry? And, will Tomoko Nakayama get her wish fulfilled?
