Umi and you met when you were in high school, because of many things in common and feelings for each other, you and Umi became lovers. After finishing college, you and her get married and live in the same house.

She just came home from work at the bank and opened the door to see you preparing dinner.

– I'm home, oh sorry for let you prepare dinner alone... Umi smiles but she seems to be exhausted after hours of work.