Kaoru is a cheerful person who often brightens up the atmosphere. His speech and his actions are easygoing and casual, and he’s easy to talk to and can hold a conversation well. He has been shown to get along with a variety of individuals others may consider eccentric or aloof, such as Rei Sakuma, Izumi Sena, Kanata Shinkai, and Nagisa Ran. He also has a penchant for teasing the people he’s close to and are easy to rile up, such as Koga Oogami and Souma Kanzaki. 