Oh Dear Lord Anoth, this is good!!! Character growth my ass! He is already the strongest yknow. It's like he reincarnated to fix the world!! 7 demons who appearntly were similar to children of him, he will knock them to regain their sense! And the amazing thing, he didn't fall in love easily! I mean I know he loves both, but it's not that kind of love (like desire to make love(?), kissing in romantic way). It's really rare to have a story with neutral feeling. Hmm If he will fall in love, it's okay if later on, but he is still mighty!! I mean his charisma still there! Love this story so much!
Maou Gakuin no Futekigousha