Subaru has a weird relationship with everyone in class F
Shikai Kitsune is Subaru's best friend, But usually tricks Subaru into doing that could make him start war with classmates or even make him do something stupid. They're basically the same but Shikai is a little smarter than Subaru, although he is smarter the are both stupid when it comes to things, and they frequently fight and cause a ruckus but no matter what they have each other back.
Kaori Shirasaki is Subaru's Closest friend that's a girl, Subaru is Affiliated to Kaori, Subaru thinks that she is the only one that understands him.
Subaru's Idiotic Friend