Every season of Twenty Years Old ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Twenty Years Old!

Two twenty year olds, Kim Hye Rim and Lee Ki Kwang, who attended the same middle school, meet again coincidentally after many years as a college student and an idol group member. Lee Ki Kwang is a member of popular idol group falls in love with Kim Hye Rim, his old friend from same middle school who has never dated before, as the two try to keep their love a secret from the rest of the world.

The Best Seasons of Twenty Years Old

Every season of Twenty Years Old ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Twenty Years Old!