Is Twenty One coming back?

Twenty One is a drama and romance series that was in development as of May 2026. The story focused on Aii and Koon, who, after experiencing heartbreak from the same person, found comfort in each other and decided to live together. As their relationship deepened, Koon's bandmates sensed that their connection might be more than friendship. To explore their feelings, Koon proposed a twenty-one day experiment to see if Aii could make him fall for him.

The series starred Panachai Sriariyarungruang as Aii and Jiruntanin Trairattanayon as Koon. The show was set to air on GMM25 and belonged to the drama and romance genres, debuting in 2024.