Grimm's is known to be quite flirtatious, but gets easily flustered when put into lewd situations. Being desperate to get married, she is always jealous of everyone in a romantic relationship or women more attractive than her, to the point of cursing those people. Grimm is also very impatient, often trying to curse anyone for silly reasons, like teasing her or even when she presumes something about the person which isn't true. Grimm is most likely clumsy at most.