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The 21-Day Theory

20251 seasonChainarong Tampong

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Synopsis

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

Drama
Based On True StoryGay ThemeBoys' Love (bl)Melodrama

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Frequently asked questions

What is The 21-Day Theory (2025) about?

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

Who stars in The 21-Day Theory?

The 21-Day Theory stars Narikun Ketprapakorn (Pie), Supakorn Saokhor (Boss), Pataraphol Wanlopsiri (Euro), Dom Hetrakul (Barami). The series was created by Chainarong Tampong.

How many seasons does The 21-Day Theory have?

The 21-Day Theory has 1 seasons. There are 4 episodes in total.

Where can I watch The 21-Day Theory?

Streaming availability for The 21-Day Theory changes by country and service. TasteRay tracks where it is available across Netflix, Prime Video, Disney+, Max, Apple TV+ and 50+ other platforms — the current options for your country are shown on this page.