Suma's personality is particularly similar to Zenitsu Agatsuma's, expressing overdramatic and exaggerated emotions in practically every situation she's in. She also tends to give off a fearful and unconfident attitude when it comes to dangerous situations, as well as a tendency to cry easily, whether due to receiving praise or from fear when being near a demon. She tends to acts immature, arguing with her two co-wives (Makio in particular) and generally irritating them whenever she gets fussy