Alternative
Danjo Futari de no Zangyou wa 7-wari Sex Shiteru kara / Don't break the flag with me! / Ore to no flag wo heshion na! / 俺とのフラグをへし折んな! / 男女2人での残業は、7割セックスしてるから / 男女2人での残業は、7割××してるから
An office worker discovers one night that after-hours things have a tendency to get heated between coworkers. Unfortunately for her, she finds the man she was interested in involved with another woman!