Season 1 poster
Series SeasonSeason 1 episodes2025

The 21-Day Theory

Season 1

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

Episodes
Each episode has its own detail page.
Episode 1
Episode 145 min2025-01-17

Episode 1

No episode overview available.

Episode 2
Episode 245 min2025-01-24

Episode 2

No episode overview available.

Episode 3
Episode 345 min2025-01-31

Episode 3

No episode overview available.

Episode 4
Episode 445 min2025-02-07

Episode 4

No episode overview available.

Season Cast
Featured cast for this season.

Cast

Narikun Ketprapakorn

Pie

Supakorn Saokhor

Boss

Pataraphol Wanlopsiri

Euro

Dom Hetrakul

Barami

Season Media
Posters and videos for this season.

Videos

No season videos available.

Posters

EN

1440 × 2160