The Library Club is in charge of maintaining the school's library.
Members[]
- Ouri Shimotsukiuri
- Sayaka Igarashi (former)
Kakegurui Twin[]
In the Twin series, Ouri Shimotsukiuri runs into Mary Saotome and Tsuzura Hanatemari, who are studying for midterms, and tells them that she is on duty.
Later in the series, Ouri is shelving books, when she is interrupted by Aoi Mibuomi, who invites her to join Full-Bloom.