The Maneater Falls In Love

What would you do if you fell in love with your best friend's boyfriend...? The promiscuous yet beautiful Leo has earned the nickname "Mr. Steal Your Man" because of his repeated tendency to approach taken men at gay bars and persuade them to cheat on their boyfriends with him. But, the moment he wins over the other guy's heart, he gets bored and tosses them aside. Despite his philandering nature, he values friendship more than anything else. He swore never to flirt with his best friend Shige's boyfriend, who's plain, looks shabby, and is not at all Leo's type. However, he seems like a nice guy who's self-assured in his beliefs... and this triggers Leo's urge to make him fall for him! His loyalty to Shige holds him back, but... What will happen between this flawed maneater and his best friend's boyfriend...?