 He then starred as one of the leads in the third installment of the "Reply" series where he played the genius Go-player Choi Taek in "Reply 1988" (2015).The show was a hit with audience ratings peaking at 18.8% making it the highest rated Korean drama in cable television history, and earned Park the nickname "Nation's Little Brother".The role catapulted him to fame in Korea and made him known as an emerging Korean Wave star, with the Top Chinese Music Awards presenting him with Best International Artist Award, the American-based DramaFever Awards giving him the Best Rising Star Award and tvN10 awarding him Asia Star Award.