Rin to shite Karen na Hana no you ni

Childhood friends Isuzu Rin and Yuuki Karen frequently argue despite their close relationship. They share a hidden bond, as they both fight against the Fatals, creatures that exploit emotions to push people toward despair. A new transfer student arrives, aware of a secret about Rin's body, while someone at school takes notice of Karen. As challenges arise, the two face various obstacles in their ongoing battle.