START-410 A Beautiful Big-Breasted OL Female Superior with a Cold and Strong-Woman Aura on the Outside, but Surprisingly Unreliable at Work—After Hours, She Takes Me Out Drinking and Has Raw Sex at Her Place: A Super Considerate Tsundere Boss, Natsume Hibiki

The film follows the male protagonist who encounters his beautiful, busty OL boss, Natsume Hibiki, at work—a woman with a cold exterior and a strong, career-woman aura. Initially, he finds her quite unreliable in their collaboration, but after work, she proactively takes him out for drinks, leading to unprotected sex at her home. It turns out this boss is a super caring tsundere type—tough on the outside but gentle at heart—and their relationship gradually heats up.