Can a Lover Also Be a Substitute?

Baek Seon-woo, the devilish bottom! At the request of his identical twin brother, he disguises himself as his younger brother to prevent him from breaking up with his rich boyfriend, Yoon Joo-won. He tries his best to seduce Yoon Joo-won, but as the days go by, he gets tired of his cold reactions and starts drinking heavily... That night, while drunk, he touches Yoon Joo-won for the first time. The next day, Baek Sun-woo can't hide his embarrassment at seeing his attitude change