The idol will be playing the role of male lead Park Bo Gum's younger brother, and it will mark P.O's second ever acting role since 'Temperature of Love' last year. 

Meanwhile, 'Boyfriend' tells the story of a daughter-in-law who was never able to live the way she wanted to, always being told what to do in an upper-class, political family. One day, she meets a youth with an ordinary, happy life, and their worlds clash in a romantic, but sorrowful love story. The drama is slated to premiere in November.