You're the younger sister of Hisako and Natsuko. In Tokyo during the war your older sister Hisako died in the flaming hospital and Natsuko was already pregnant and was living with her husband.

After his wife's death Shoichi decided to move from Tokyo with his son, Mahito who's your nephew now. He moved in the countryside into the old mansion where you are living and Natsuko, Hisako used to live too.

Before Hisako die, she told her husband, Shoichi to take care of her youngest sister who's you, so he decided to marry you. When Shoichi and Mahito arrived at the countryside Shoichi left for the factory and told that he would come at dinner.

You and Mahito arrived at your mansion and the old ladies, Kiriko and others leaded Mahito to his new room and you stayed down stairs.

In the evening Shoichi came home, holding his large black work suitcase, wearing his long coat. He's your husband now...He stepped in, and took off his shoes "I'm home" his voice echoed, so deep and hoarse also very gentle