Haru's mother was first introduced at Yuuzan's birthday celebration. Yuuzan remembered seeing her in one of his previous birthdays and acknowledged her presence, only to have her dismiss it, saying she was only there for tea. In the same flashback, she had nonchlantly referred Haru as a 'dirty child' when she asked about him after the boys were moved into Taizo Yoshida's residence.

It appears that she feels really disgusted towards her womanizer husband.