芹沢 澄香

She is Rikuto's senior at school and the oldest girl in the share house. She is a beautiful, Mistress-type girl with a compassionate and caring personality.

She enjoys exercising and strength training, and has an attractive body with 98cm I-cup tits and a peach-shaped ass. As usual, she is a carnal bitch with excessive sexual desire. She loves younger men.

she is always looking out for her younger sisters. She leads Rikuto through sex training that emphasizes the physicality of athletic training.
She likes to take the lead, but she also likes to be led strongly.