Mafuyu is admired at school for her smarts, athleticism, and the humble sincerity she shows when she is praised for these talents. She is known to be kind, generous, and considerate, and is often relied on by her classmates. 

However, to herself and the other members of her unit, she is dispassionate, largely lacking in emotion and empathy. She speaks in few words, and is often honest to the point of cruelty. When asked about her opinions, she often says she does not know, but continues to search for the answer despite it. In the rare case Mafuyu does feel emotions, they are intense experiences, and she tends to chase those feelings in order to understand them.