Gizaemon or Giza for short is a fat cat who is often in the Library Club room.
Giza is a fat black and white cat.
Giza has been shown to make faces in some scenes.
Giza was once seen with a hat.
He is somewhat lazy as he sits around or sleeps. Despite being a cat, he is very intelligent and understands his surroundings very closely. Giza gets along well with the club, such as Misono, Takamine, and Kakei.
Gizaemon often poses for pictures in a manly way and enjoys the attention he receives.
- In episode 2, Shirasaki questions Kyōtarō Kakei how Giza came to be in the club but the latter had no idea.
- It is possible, he is a stray who found his way to the school.
- Nagi Kodachi is scared of him, mostly because of her fear of animals.
- Senri Misono adores Giza, due to her love of cats.