In one night, Gun-wook (Kim Nam-gil) lost everything because of the Hong family. They took him in, believing he was President Hong’s illegitimate son Tae-sung, and then cast him aside into the streets when it turned out to be a mistake. Years later, Gun-wook returns for revenge, taking down the Hongs and their Haeshin corporation step by step. The real Hong Tae-sung (Kim Jae-wook) and sisters Mo-ne (Jung So-min) and Tae-ra (Oh Yeon-soo) are all chess pieces in his impeccable revenge plan, but he never planned on meeting and falling in love with the smart and equally ambitious Jae-in (Han Ga-in).
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