Yuri Tokikago

An actress belonging to the Sunshiny Theatre troupe, starring in a lead role in the upcoming presentation, Tragedy of M. She is also Keiju Tabuki's girlfriend and eventually becomes engaged with him. She is considered to have a poker face, as her facade makes her seem like the elegant and exquisite actress, while her sly side seems to surface when she talks to Ringo about winning over Tabuki and makes her realize about her feelings for Shoma. During her childhood, she was often told she was ugly by her father and had modifications performed on her. However, she was saved by Momoka, who loved her and used her diary to change her fate.

Yuri is the only other person to know the diary's secrets and seeks to retrieve it in order to bring Momoka back to life.