Kaname Arisugawa

Kaname is Nasa's childhood friend. She is one of the few that did not mock his name. She's also been helping the bathhouse for a long time. Despite being young, she is very mature and always gives good suggestions to Nasa to help him out with his couple life. Like her mum, she really likes dirty jokes and apparently, she has no fear of cleaning the males' bath while Nasa is in there. She isn't shy and prefers a direct approach.