Once a privileged young man with a prestigious family and a secure life, Yeonjo's world shatters after his father's treason leads to their downfall. Left with no family and enslaved, Yeonjo seeks vengeance against Kwon Hee-ryang, the man responsible for his losses. To execute his revenge, Yeonjo must form a dangerous alliance with his sworn enemy, concealing his true intentions with a charming facade. With a hidden blade beneath his pleasant demeanor, Yeonjo bides his time, plotting his strike against the one who destroyed his life. However, the path to retribution proves to be far more treacherous than he anticipated.