colleague's new wife

Otsuka and Hamada come to help Tadashi, who got married and moved earlier than anyone else in their class. He had no expectations that his new wife would be ugly since he had never been introduced to her until now, but what appeared was Saki, a young, beautiful, and extremely stylish bride. Then, when the four of them were drinking after the moving work, Saki ended up getting drunk by herself. Then, Otsuka pretends to care for Saki and ends up raping her. From then on, Otsuka continues to threaten and tease Saki with the photos he took at that time...