Sung

Sung was a doctor working for Abstergo Industries during the early 21st century. She was tasked with extracting information from Daniel Cross, a Templar sleeper agent who had previously climbed the ranks of the Assassin Order. With Daniel bound to an operation bed, Sung had to inject him with a serum and ask him for information related to the various Assassin hideouts he had visited over the past two years, which led to a Templar operation named "the Great Purge". While a Templar team was infiltrating an Assassin safehouse in Philadelphia, Steams, the Abstergo executive overseeing the operation, ordered Sung to inject Daniel with a higher dosage. Though Sung heavily protested, citing the risk that it would have on Daniel's physical state, she relented and followed Steams' order when the latter pointed out that she could easily be exterminated.

Source

 * Assassin's Creed: The Fall - Epilogue