That's legit yo. I'm not really into Vtubers but that's funny AF, and I can totally imagine Mamoru (Or her clones) just having a foul mouth in contrast to their refined maid appearances. In fact I'm sure her other clones right now are just partying up a storm since they don't have to repress and pretend to be elegant maids, though hopefully they haven't tried to like, burn down a country or something.