When did The 21-Day Theory premiere?

The 21-Day Theory premiered in 2025.

Who stars in The 21-Day Theory?

The 21-Day Theory stars Narikun Ketprapakorn, Supakorn Saokhor, Pataraphol Wanlopsiri and Dom Hetrakul.

The 21-Day Theory

Name: The 21-Day Theory
Genre: Drama
Released: 2025-01-17
Rating: 9
Cast: Narikun Ketprapakorn, Supakorn Saokhor, Pataraphol Wanlopsiri, Dom Hetrakul

Ended

2025

9.0

Drama

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Overview

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

Cast

Seasons

Season 1

Season discussion

4 episodes · January 17, 2025

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

No episodes found for this season.

Frequently Asked Questions

How many seasons does The 21-Day Theory have?

The 21-Day Theory has 1 season.