The library was originally located on the second floor towards the left. The walls were a light grey and the floors were grey. There was nothing in it.
The library is now located on the second floor in the western wing. The room has three sections all lined with books. A couple of tables with chairs are located to the right. One table is on the left side. Miscellaneous posters line the edges of the walls in the room. Study-kun A used to be found here looking at books and Study-kun B used to be reading a book on the left side table. These were not real students. Like Rival-chan, you couldn't interact with them.
The library currently can only be used to improve a suitor's wisdom. This is done by studying with the suitor at one of the tables. It also used to host two male students, Study-kun A and Study-kun B, who were used to inform the player about some of Kokona Haruka's preferences in regards to boys. They spent the whole day in the library, not moving from their spots. Kuu Dere can also be found reading here. You can check out a book for any students' task (other than the ones that already has a task).
- The library was fully furnished in the April 1st, 2016 Build.
- Kuu Dere is the school's librarian.
- The book on the table contains simple information on Yandere Simulator's premise.