Luna was a girl who had endured great humiliation in her past life.After being reborn, she decides to play the weak while actually being a shrewd avenger.She is determined to make her family, ex - boyfriend and former best friend pay for what they did.Meanwhile, she meets Leo, a wealthy and scheming young master.He initially misunderstands Luna but later regrets it deeply and chases her fervently.Eventually, Luna gets her well - deserved happiness.