Aterrimus is an aggressive Tokota, viciously protecting his owner and anything else classified as his property (all of his owner's tokotas included) with plenty of bites and snaps if you get near his personal space, that has about a mile radius so he doesn't have to look at anyone. If he doesn't know you, he will bite you until he is appeased with seeing a living rabbit. He loves rabbits as his friends and his mile-wide territory is a sanctuary for the little creatures. He is okay with being ridden but tack is not something he particularly likes. He will only let his owner ride him. He also adores water hence why he's dubbed Otter at times.