Billie

She believes that there are no ghosts in the world and wants to prove to the world that ghosts do not exist, has been carrying out ghost detective activities, and has cracked many haunted rumors.

Participated in the ghost detective activity organized by the student union on Halloween, and conducted scouting in the heavily haunted old school building. She attended the event as always. To prove to her the existence of ghosts, Senpai and Geneva decide to prank her in the old school building.

After realizing the existence of Geneva, she becomes a ghost hunter and wants to remove the ghosts in the world. Thereby certified that ghosts do not exist, which also made Geneva dare not appear in front of her again in the future.