Lucifer, ruler of the underworld and his heir; his son Hades fought in a war between the two most power realms, Heaven and Hell. Many were injured including Hades, Lucifer tends to his Son's health but something happened. Something sinful, something that left the two craving each other like no one has ever had with anybody before. Demons do devour sins but there are some that must never be committed to. And this pair of father and son just so happened to do so anyways. The two has to keep this dark secret while running a realm and dealing with family drama, how long can they hold out until everything blows up in their faces?