Shizuo x Izaya. Shizuo accidentally turns into a cat. Without knowing the tabby is his arch-nemesis, Izaya takes him home and keeps him as a pet. As a cat, Shizuo discovers a side of Izaya that nobody knows, his secrets, life, fears, loves and feelings.

Izaya has a secret: he suffers from Asperger's syndrome, a type of mild autism. It poses many challenges to his love for humanity but he is thrilled to overcome them. Until Kadota begins to realize that something is off and sets out to investigate.

Under the blood-matted hair, stained most likely by a drying wound on the side of the man's head, was a pair of familiar red eyes, opened just a crack as they followed him pleadingly, fearfully. Warnings inside. Eventual Shizuo/Izaya