来島 弥生

She is 37 years old and the head nurse at Tanizaki General Hospital. She is Jun's subordinate at work and is a frequent visitor to the Tanizaki residence.

She is Jun's father's mistress and is currently having an affair with him. Jun uses this as leverage against her to get her to become his mistress as well.

She distributes contraceptives procured from the hospital to women who are members of the "mama club".