Despite her cheerful exterior, Yukari is secretly a very lonely girl. Although she deeply values bonds and relationships with others, she's afraid of letting anyone get too close to her with fear that they'll find out about her traumatic past. The protagonist is an exception to this, as the two can relate to each other due to their shared losses. It can be heavily implied Yukari has romantic feelings for him. Eventually, she starts to open up to those around her, particularly Mitsuru.