Sword Mark Sword Shadow

Trying to Find a Book: An Omnibus of TV Dramas With a Storyline About The Disguiser

The female lead is from the Ming family and Ming Lou's younger sister. She's also an undercover agent, with a golden finger System. No CP. There's a scene where she brings a whole crate of penicillin as a gift for 'Viper.' It's incredibly well written, with a spy-thriller vibe.