Koiro Yuuki, a college student working part-time at a convenience store, confesses her feelings to the kind manager Makoto, but is rejected because he is married. Even so, Koiro, unable to give up, aggressively attacks him using her breasts and manages to have sex!! She was told that raw sex was no good, so she intended to just use the store's condoms, but she couldn't stop herself, continued having sex even after running out of condoms, and became addicted to a relationship where she has raw creampie sex.