Twenty One

Twenty One (21วัน ลองมารักกันดูไหม) is an upcoming Thai BL series from GMMTV about two people who meet at the worst possible moment and decide to make the best of it. Aii and Koon have both had their hearts broken, and the twist is that the same person did the breaking. Sharing that kind of hurt turns out to be a strange way to start a friendship, but it works.

The two lean on each other, and the more they talk, the more they discover they have in common. Spending so much time together makes one practical idea sound perfectly reasonable: they move in and share a home. Living under one roof brings them closer every day, and the line between friendship and something warmer starts to blur.

Koon plays in a band, and his bandmates can see what he is feeling before he is ready to say it. They keep nudging him to admit that his feelings for Aii go beyond friendship. Koon is caught in a very human fear. He is afraid of losing what the two of them already have, and he is just as afraid of losing Aii if those feelings are never returned.

His answer is the experiment that gives the series its name. Koon suggests a twenty one day trial, a set stretch of time to find out whether romance can grow between them. Junior Panachai Sriariyarungruang plays Aii and Mark Jiruntanin Trairattanayon plays Koon, with Nut Thanat Danjesda as Way, Hong Pichetpong Chiradatesakunvong as Night and Great Sapol Assawamunkong as Mix. GMMTV revealed the pilot trailer at its GMMTV 2026 line up event on 25 November 2025.