Kanau Kongou

Taihei's boss and department manager. She is Hikari Kongou's older sister. A beautiful woman with long light brown hair adorned with a yellow ribbon, her demeanor and speech can be somewhat high-handed.

As the daughter of the president of "Diamond Service," she holds an important position at a young age, showcasing her brilliance, but she also has a very human side, occasionally making unbelievable blunders. During her school days, she was in the advanced class just like Hikari. She often makes unique sound effects like "nuru" and "nurun" when she appears. She is terrible at cooking.

She has known Taihei and Bomber since their school days and was also in the advanced class like her sister Hikari. She is one year younger than them. She has had feelings for Taihei since their school days but has not been able to convey her feelings to him up to the present. She also knows Alex from his middle school days.

Among Taihei's acquaintances, she is the only one who does not know about Umaru's secret (her "Himouto" and UMR personas).

In the "Character Popularity Poll," she ranked 7th overall.