Aoi is a new employee who arrives early to impress their superiors and senior colleagues. But Aoi never expected to witness a beautiful woman having sex with another man right in the office!!! It turns out that the woman is Momo, Aoi's senior colleague, and the man is another employee of the company. Aoi promises not to tell anyone about this. That day, Aoi is introduced to everyone by the department head, and especially Momo is in the same department as Aoi. The department head assigns Aoi to be guided by Momo. After hearing other senior colleagues share, Aoi learns a bit more about Momo. Momo used to be a model for adult magazines, with a beautiful face, a hot body, and a friendly personality. There are rumors that Momo specializes in seducing male colleagues, and no one can resist her temptation, including the department head! He always overlooks any misconduct that Momo commits, often inviting her somewhere to have a private conversation. When being instructed by Momo, Aoi always secretly looks at Momo's breasts, and Momo notices it too. This is when Aoi realizes that the rumors they heard are completely true! Momo constantly seduces Aoi, and Aoi cannot escape her allure!!! It seems that Momo also has feelings for Aoi, as she performs oral sex on Aoi when there are colleagues around, refuses to go with the department head but agrees to go with Aoi. Momo even lets Aoi ejaculate inside her time and time again!!!