Mika Egashira

Mitsumi's classmate. Initially, she approached Mitsumi with the intention of getting closer to Sōsuke, which made her somewhat cold at first, but she gradually became influenced by Mitsumi's pure nature and started to show her true self. Having been treated carelessly by others in the past, she developed a twisted personality to avoid being underestimated, though at heart she is kind. She has also diligently worked to overcome her complexes. She has a tendency to gain weight and was overweight during her elementary school days. She is a member of the English Conversation Club.

While conscious of Sōsuke, her calculative thinking was somewhat apparent in her interactions with other friends, but eventually, she became a valuable friend who could truly connect with Mitsumi and others. She often looks after the naive Mitsumi.

Due to past experiences (she says she was somewhat bullied), she continued to feel inferior. When Sōsuke rejected her confession, the sincere way he faced and rejected her made her realize that it was okay for her to be in love.