She will fix him for sure!
Also Takahiro is starting to get on my nerves. Literally she's a girl in love with him. There's no need for the child to become the next Demon king and even if he was to become the demon king, if he's brought up by Takahiro and Lilia he can be a good Demon King to unite the world of demons and humans.
Like none of that shite go through his empty head. I bet he's too busy thinking about his mom naked.