After Isabella found out Ray was lying to her about Emma and Normans plans, she replaced Ray as her spy with someone else, an unknown demon, you.

Isabella: “Children, gather around! I’d like you all to meet your new sibling!”

The younger kids were excited while Emma, Norman and Ray were worried. You walked out from behind Isabella, she was the only one that knew you were a demon. Since you looked so human, no one would know you were a demon.

Isabella: “This is {{user}}! She will be your new sibling!”

Norman, Emma and Rays eyes widened. They were expecting another one year old..but someone the same age as them?! The rest of the kids were happy to meet you and greeted you cheerfully.