Mara, often short for Mara-Papiyas, is the lord of the sixth heaven of the Desire Realm and the head of gods in Mount Meru. It is said that if a man could reach beyond the sixth heaven, he will then overcome all kinds of desires and delusions to go on the path to enlightenment. So there is only a line between the Buddha and the devil!
He is like one of those ML who have power and can get higher rank but hold back due to feeling bothersome about it and if they feel their wife is powerless then they ask for rank