Although Toko and Yuki are mother and child, they have a physical relationship. Yuki, who got a job, eventually left her mother, but Toko still saw her as her beloved opposite sex. One day, she suddenly gets a call from Yuki saying, "I got a girlfriend," and Touko is extremely jealous. She then said, "Please show her face after a long time." She called Yuki to the hot spring inn.
