After the death of their parents, Qian Qi (Younger Twin) turns money-minded; using money to fill the pain in her heart. Qian Qi and Qian Ting (Older Twins) had to work as “hitmen” in a gang - to settle their debts. Upon the last mission, Qi confesses she wants to stay in the gang to earn quick cash. But older twin Ting is eager to leave the gang, and work towards their childhood dream.