CEO of Reve clothing company, Kang Seulgi was experiencing a Dissociative Identity Disorder (DID) or commonly known as Multiple Personality Disorder. Bae Joohyun or Irene (code name) is an undercover agent under Velvet agency, a five star agent (highest ranking). Irene have done a lot of dangerous and difficult mission in her whole life, before departing from the agency and live her dream life. She receive her last mission that makes her life turn upside down. A mission to unc