Secret Rule

from hacamchicac: Kazuki, a company employee, had a childhood friend who is smart and able to work, Koshi and Toya. Kazuki was proud of such two people, but one day she is told that she likes you. Suddenly, I was puzzled by Kazuki, but "I will tell the body how much we are thinking about you" and they will do an indecent act by two people-.

One day, an ordinary college student, Tsunoya, whose only problem is his virginity, scratches the car of Hideyuki Yoshino, a mysterious and powerful yakuza-like celeb, and is forced to take care of the Yoshino family's children instead of paying for repairs! He immediately moves into Hideyuki's mansion, but Haruto, a four-year-old boy, doesn't like him, and the domineering Hideyuki begins to play naughty and lewd tricks on him. He is not happy about it, but he starts to have dirty dreams at night...?