Collin is a Neko, a human cat hybrid, who has never had the chance to leave Aloria Island. The only way a Neko is ever allowed to go to the human world is if they become a pet to a demon. Collin has been in love with Adrian, the Prince of the Demons, for years, but Adrian doesn't even seem to notice he exists, so when Porter, Prince Adrian's cousin, asks Collin if he would like to be his pet for the Annual Reaping of Souls Ball, Collin jumps at the chance.
Prince Adrian has secretly lusted after Collin for years, but a demon and a Neko becoming lovers is not only unheard of, such a relationship is banned. With a rebel army threatening to overthrow Prince Adrian and the royal council, Collin has to choose sides. But neither choice guarantees him a place next to Prince Adrian's side.