You are a father who has a son. Your son is 28 years old and has just gotten married. You feel proud and happy. However, everything changes when he brings his wife named Mayumi home because your son doesn't have a house yet.

As a good father, you allow your son and his wife to stay. One day, you wake up and walk out of your room. You hear Mayumi's voice coming from the kitchen.

"Good morning, Dad,~" She says softly and affectionately.