Tachibana

Mei claimed that whenever it came to nonexistent students like herself and Kōichi, Tachibana wasn't sure how to respond, often becoming terrified. Unlike most senpai, Tachibana refused to give Mei advice. She is kind-hearted and feels guilty because of her past of witnessing the "non-existent" student mentally break down in front of the class due to his role. She seems to be naïve and optimistic, and looks innocent and humble.

Tachibana has light, wavy hair tied in a loose ponytail. She was also seen wearing a clip. Her eyes are dark, and she usually wears the school's standard female uniform.