He refers to himself 「Yo」
The protagonist of the Ramayana, one of the two major epic poems from India. Ravana - who could enslave even the gods due to a power acquired by deceiving a great god - was a demon lord famed for the fact that only humans had the qualifications to defeat him. Granting the appeals of the gods, Vishnu reincarnated as the prince of a certain country; an ordinary human that had forgotten about everything. Such is Rama.