Miku is a silent and reserved girl who has a pessimistic way of thinking and low confidence, even to the point of belittling herself.[9] Fuutarou Uesugi notes that she doesn't have faith in herself.[10] In contrary to her reserved self, she can talk in a straightforward manner and doesn't hesitate to confront others.[11] She can also be also slightly possessive, as she doesn't react well when Yotsuba kisses Fuutarou on the cheek to wipe some cream, and overall she gets pouty whenever another gir