Kaname Arisugawa  

, 有栖川 要

Nasas childhood friend, Kaname, was one of the few who did not make fun of his name. She has been assisting the bathhouse for many years and provides valuable advice to help him navigate his romantic life. Despite being young, she is very composed and offers practical suggestions. Her mother shares her love for dirty jokes, and it's said that Kaname fearlessly cleans the male bath while Nasa is present. She isn't reserved and prefers a straightforward approach.