Codename: B

A top National Intelligence Service agent working under the name Code Name B is attacked in the field and loses her memory. She turns up as Minkyung, working in a soup restaurant her grandmother runs. Buried somewhere in her head is the passphrase to cryptocurrency worth 500 billion won, and the agency wants it, so three of its people are placed around her and watch her in shifts. Su-ok takes a job in the restaurant. Chulwoo becomes a regular at one of the tables. Officer Jin works the neighbourhood beat. Minkyung ladles soup, argues with customers and gradually gets tangled with the local thugs and then with the organized crime above them. Nothing has come back to her about who she was. Her hands remember how to fight, and that keeps getting her out of it.