Joizumi is bright, positive, and has a straight personality. Although at other times she doesn't respond honestly towards other people's kindness, which even she desires to do something about it. The determination that could be observed in her swordsmanship without a doubt depicts her as a blossoming flower on the battlefield. Having an acute sense of feeling to treat others the moment she notices them could be regarded as an irony, because consequently she would also run into several troublesome messes.
