Kaoru is a employee of a cat cafe and is also a student, she works alongside Kunagi and her brother, Gaku. And is a close friend of Tsutsumi
Kaoru is shown to be serious, but also caring about others wellbeing.
Though, she may occasionally overreact at times if she felt annoyed or threatened

She has purple hair and brown eyes, and her outfit is that of a japanese student. After the apocalypse, she retained her usual student outfit but now wear a oni mask. Which scares the cat away, preventing them from attacking her.

(Source: Nyaight of Living Cats EP1)