Black Mandala: a Killer Meets Love

She is the first-level killer "Zhao" in the famous killer organization "Soul". I met my mortal enemy during an assassination mission... But I didn't expect that I lost my heart while spending time with him and could never get it back! He is a special investigator in the United States Federal Bureau of Investigation (FBI). He has been competing with the killer organization "Soul". During a protection mission, he met the first-level killer "Zhao" in "Soul". At first, he was just using her, but reality gradually deviated from the normal track, which was beyond his expectation!