My friend's mother: I'm looking for a friend's mother and wife

Storyline: Takashi, who lived with his wife and his two sisters together, decided to let him sleep for a moment with a request from his friend Yuuki, whom he met a long time ago. Takashi is suspicious of Yuki who seems to be hiding something secret. And while Takashi came to work, he showed the touch of black desire for his mother and wife ...