This is the confession of a certain office lady, Kitagawa Riko. Having graduated from an all-girls school and an all-girls university, Riko is not used to being around men, so she desperately tries to fit in at her office, where there are only men. She tolerates minor body contact and sexual harassment comments as a form of communication, but the male employees escalate their sexual harassment, and eventually they even start forcing her to have sex with them...!