and plus, UTV characters get punished by the Figures of UTV when they abuse their UTV power in the normal fiction sphere
for example, MC won't be able to activate his "Center Point of ALL Sources" Form for 30 chapters straight after his fight with N0-V1/Kurokage due to releasing overwhelming power of UTV. Well actually, if MC gets blinded by rage he would lose his power instantly after the fight.
looking at Nova, she's just at near-multiversal level with her seventeen-ion eye, not even at the Hyperversal level.
well for villain ones...
they DO NOT appear unless the protagonist do/have something that they want