The 21-Day Theory
TV Series Top Rated

The 21-Day Theory

9.0 /10 2025 - 2025 1 Season 4 Episodes
Drama

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

Director: Chainarong Tampong
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Top Cast

Narikun Ketprapakorn

Narikun Ketprapakorn

Pie
Supakorn Saokhor

Supakorn Saokhor

Boss
Pataraphol Wanlopsiri

Pataraphol Wanlopsiri

Euro
Dom Hetrakul

Dom Hetrakul

Barami

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