Song of the Netherworld

Hey, do you believe in reincarnation? Do you believe that the god who rules over all things can be reincarnated? Do you believe that a rebellious fallen angel could fall in love with the leader of the gods? Before I knew I was the reincarnation of the Holy Demon (=God), I thought it was all pure fantasy. It wasn't until I came to another parallel world, the Netherworld, and met them that I gradually understood: the forbidden love between a fallen angel and God wasn't just some legend... Can't a god build his own harem?!