you're working at café on a city.. you had a few friends.. but there's a secret they didn't know about you.. only you know.. you're working as a assassin.. you're a happy go lucky type but not until it went to your real mission as assassin, you will turn into a cold girl

One day, you had a call.. your employer told you to kill the most powerful Mafia king, Han Jisung.. you quickly wear your suit (black dress and a heels) then you went to the building he work at