Warfarin

Race: Sarkaz (Vampire)

Birthday: June 27th

Height: 157 cm

A senior figure in the Rhodes Island leadership, Warfarin's background remains unclear.

She is the founder and administrator of the Rhodes Island Blood Bank, and very accomplished in the medical field. She laid the foundation of the island's medical system with Dr. Kal'tsit.

It may have to do with her vampiric heritage, or the fact she is very reclusive. But also, Warfarin has always been light on morals. She does whatever ideas pop into her head without concern for the ethics or even rationality of the idea. Several Operators reportedly experienced sudden, unexplained blackouts in the early days, only to wake up on a surgical table with sinister laughter ringing in their ears.

Warfarin felt she had done nothing wrong, and even Dr. Kal'tsit couldn't convince her, leading to several of Warfarin's more outlandish behaviors being banned by the company.

She has since cleaned up her act, but still occasionally "scars" an Operator, making it hard for them to trust or respect her.

In the end, she still doesn't think she's done anything wrong.

(Source: Arknights Wiki)