Chiho has a very obvious crush on Maou, but he has yet to respond to her feelings despite her confession. ... In the light novel, Maou stated that he doesn't want Chiho to get any closer to him than she already is because he's afraid she will get hurt.
Does EMI like Maou?
While it is unclear whether Maou and Emi are harboring the beginnings of romantic feelings towards each other, it is worth noting that there have been hints of some level of attraction throughout the LNs.
Do Maou and EMI have a child?
Alas=Ramus (アラス・ラムス, Arasu Ramusu) is the appointed daughter of Sadao Maou and Emi Yusa. She is a fragment of Yesod, one of the elements of Sephirot.