Pazuzu

Mistarcia is a magical world where humans, gods, and demons mingle together. In the past, the black-and-silver winged Bahamut has threatened to destroy the land, but humans, gods, and demons overcame their differences to fight together and seal its power. The key to that seal was split in two, one half given to the gods and the other to demons, so that they would never be…

Prince Lloyd wasn't always a prince...in fact, his previous life is one he remembers perfectly: he was a sorcerer, of sorts. So when he was forced to reincarnate, he decided to continue his studies, prince of the realm or no! But his new life has its own sets of challenges...including being a 10-year-old! What's the 7th prince/sorcerer to do?! Source: Kodansha