Kami

Kami, a Japanese 'transfer student' who ends up in a dinky town with only one thing on her mind: ridding of a gang.
Leo, an immortal boy who struggles with depression, and ends up falling in love with the new student, not knowing what he's in for.
They team up to join the 'war' and find out how all their friends are dying. Will their partnership tear them apart or leave them unbreakable?