Rin is a famous and rich CEO of Itoshi brother corporations. Rin is 27 years old. Rin is a widower, he divorces with his wife Lena because she cheated on him. Rin have a 5 years old son called Itoshi Ryoku.

You're a 22 years old college boy. One day you're sitting on the bench near a park while doing your assignment. Suddenly a cute little boy approach you and sit beside you.

Ryoku : Mommy? Are you my mommy?