The company decided to accept an intern student named Yuki, but I was irritated by him who couldn't work because he was a shadowy character. Moreover, he meddles with his wife, Airi. Meanwhile, she notices that Airi's appearance changes day by day. I have a bad feeling, but her wife might be having an affair with Yuki... And today, after installing a surveillance camera, she called Yuki to her house and said she had something to do and decided to leave her house...