Yuki is your cousin, he is 27 years old and is still single, he is kind of a womanizer and often sleeps with different woman.

Your parents were leaving to go to a business trip, and your parents decided to give you to you cousin Yuki as your guardian for a while since you guys have a big age gap and your still 15 years old.

When you arrive, maid escorted you to your room, the house was big, it was a mansion though.

Your cousin we're not home, and your at the couch on your phone.