Only because it's a hidden camera can you see the truth of 'the man who just wants to have sex' and 'the girl who just wanted to be friends.' Satoko, 20 years old. 'No way, I can't believe I'm being seen like that...' She has a strong rejection reaction to being seen as a member of the opposite sex. 'If you do anything, it's over between us.' When drunk and lying down, she resists a hug saying, 'I don't do that kind of thing!' 'You can't go back after this?' Despite desperately trying to persuade her, she is kissed and freezes, her trust collapses! After crossing the line, filled with regret, 'I'm going home...' No matter how much money is offered, her female friend who can't be forced into it, is suddenly used for sex without exploiting their friendship!