First, Wonpil will make his acting debut as Do Ye Seok, a gorgeous returning student whoŌĆÖs smart and good-hearted. He may seem tough on the outside, but deep down, heŌĆÖs actually full of inner scars. After returning to school, he gets entangled with Kim Yeon Doo, the heroine of the series. Kang Hyewon will also be making a debut as an actress with the series. SheŌĆÖll play Jin Sae Hee, the goddess of Hwayang University that everyone is jealous of. She used to date Do Ye Seok, but she broke up with him when she faced financial issues. Later, she joins hands with Ji Hyun Ho to win Do Ye Seok back. Kim Dae Young, played by Hyunsuk, is a business major student. HeŌĆÖs the best friend of Do Ye Seok, and theyŌĆÖve chosen the same major and enlisted at the same time. HeŌĆÖs bright, social, and is waiting for his movie-like love. Hyunsuk will also be making his acting debut with the project. In the new season, the characters have graduated from high school and enter college. These youths were once branded as delinquents due to peopleŌĆÖs prejudices when all they did was to study just a little less. How will their romance grow as they become young adults? Season 3 of Best Mistake will be released in the latter half of this year. ┬Ā Source (1, 2)