Kaname Arisugawa

有栖川要 有栖川 要（ありすがわ かなめ）

Gender:Female
Age:15

A junior from Nasa’s middle school days and the daughter of the local bathhouse “Kusatsu Onsen Fuyufu-in.” An energetic and cheerful younger sister, she is a 15-year-old high school freshman. With guidance from Nasa, she effectively manages her family’s bathhouse. At school, she is a member of the art club. She often talks about risqué topics and casually cleans the men's bathhouse while Nasa is bathing, without batting an eye. She is very curious about Nasa and Tsukasa’s married life, frequently asking them directly about what they do together, especially at night, and occasionally peeking into their life. Despite this, she is quite reliable and often gives mature advice to Nasa, who, though older, is not adept with understanding women, saying things like, "In marriage, you must be sincere to your partner." She calls Nasa “Senpai” (switching to “Senpai” in kana from episode 31) and often teases him, especially about risqué topics or his relationship with his wife. However, she genuinely respects and is grateful to Nasa for helping to revive the family business, and also expresses gratitude to Tsukasa, who saved Nasa’s life. She starts calling Tsukasa “Tsukassan.”