Having lost her older brother that she was very close to, she feels lonely and starts climbing through the balcony to spend more time in Miyamura's company in the odd hours of the night, as she starts to see Miyamura as a brotherly figure. and hides behind him when other men approach her, as she appears to have a mild fear of men and is bad at dealing with them.
Initially thought to have a crush on Miyamura by Hori and others due to her being seen stalking Miyamura at school, it is revealed that it is Hori who she crushes on, and she was jealous of how close Miyamura and Hori were. She initially saw Miyamura as a love rival and she is very clingy with Hori.