Yurikuma Arashi: Complete Series

In a world divided between humans and hyper-intelligent, man-eating bears, Kureha attends an all-girls school and holds onto a simple wish-to spend the rest of her life with her classmate and soul mate, Sumika. But after a secret rendezvous ends in tragedy, Kureha vows to never back down on her love and put a bullet in any bear she meets.