天戸屋 成

Likes: Citrus aromatic oils
Dislikes: Reptiles and unreasonable things
Hobbies: Watching plays and collecting postcards

A girl from Class 1-6, and one of Nana's friends that end up with her in Heavenly Host. She is a side character in Extra Chapter 1 in Corpse Party: Blood Covered. She gets annoyed easily, but cares about her friends. She and Nana are childhood friends. She is also revealed to be a fujoshi in 2U, shown when she requests Mayu to add in boys' love content for the script of the drama in Chapter 2.