Iga Mako, after finishing the new employee training at her business trip destination, went to an izakaya with the department heads. Overwhelmed by the atmosphere, she got drunk on her disliked alcohol and was taken to her accommodation, only to find herself sharing a room with a department head. The plan succeeded, and the inebriated Iga was attacked by the department head. Initially resisting, she was brought to multiple orgasms by his relentless thrusting, a sensation different from her boyfriend's. Despite feeling guilt, she indulged all night in the pleasure of adult sex with his extraordinary member.