>>59310996Because Mouse is a tier above them.
Also all angels in the vshojo mythos have certain attributes that are far beyond human, for example they are being of pure energy and can shapeshift and fly. We see multiple times that their human shapes are just for our viewing pleasure.
Also Nazuna kills them by decapitation with the key, not by smashing them, which would require far more strength. She also seems to retain some of her other angel abilities.
Feel free to scale her yourself if you have a different idea though. Just saying "we don't know definitely" will not cut it for that.
