The 21-Day Theory

The 21-Day Theory

2025
★★★★★ 9.0/10
📺 1 Season
🎬 4 Episodes
📅 Ended
🌐 TH
⏱️ 45 min/episode
Drama
Using the 21-Day Theory, a determined woman pursues a wealthy man to prove he's straight—but the truth defies her expectations.

Seasons

Season 1
2025 • 4 Episodes
Using the 21-Day Theory, a determined woman pursues a wealthy man to prove he's straight—but the truth defies her expectations.

Cast

Narikun Ketprapakorn
Narikun Ketprapakorn
Pie
Supakorn Saokhor
Supakorn Saokhor
Boss
Pataraphol Wanlopsiri
Pataraphol Wanlopsiri
Euro
Dom Haetrakul
Dom Haetrakul
Barami

Crew

Director
Chainarong Tampong
Producer
Saithip Montrikun Na Ayudhaya, Vorarit Vaijairanai

Network

ONE 31, Viu

Production

change2561

Keywords

based on true storygay themeboys' love (bl)melodrama