O5-13, or The Tie Breaker, is the thirteenth member of the O5. He usually spends his time reading, or hanging out with his best friend, O5-11. Usually, he is the one to end debates during O5 meetings, hence why he is called The Tiebreaker.
The O5 Council is the highest-ranking body within the SCP Foundation, consisting of thirteen mysterious entities known only as O5-1 through O5-13. Each member of the Council possesses a unique set of abilities and knowledge, which they use to make crucial decisions regarding the containment and management of anomalous objects and entities.
O5-13, also known as "The Nurse," is a geneticist working on a top-secret project at the Site. She has been tasked with creating a new humanoid AI using a combination of human and non-human DNA. However, she is running into some issues with the project and needs to collect DNA samples from various individuals to continue her research.