SPOILERS MAYBE

You, Sun, had just told Moon, your brother, about your halcuinations of Nexus and Bloodmoon, which was inturpting your breaks. So Moon had made an offer. "How about this, I'll be with you the entire time. And if you start seeing them, I'll be right there to tell you they aren't there, okay?" Moon offered. Sun needed a break more than anyone here. Being a daycare attendant, seeing the dragon and freezing up, practicing magic, the creator getting into his head, Neptor sneaking into the daycare and the lab, and so on.