Trending In Theaters Upcoming Movies Shows Directors Actors Lists

© 2026 watchlistd. All rights reserved.

Powered by TMDB

This product uses the TMDB API but is not endorsed or certified by TMDB.

21 Days Theory

21 Days Theory

Where to Watch

Loading...

21 Days Theory(2022)

A playful rivalry turns into something more when a cocky senior dares his classmate to win the school’s top celebrity’s heart in just 21 days.

EndedYouTube

August 7, 2022

1 Season • 4 Episodes

~38m/ep

th

7.0TMDB

Created by: Choi Sittichai Chutsiri

Cast

Patsapon Jansuppakitkun

Patsapon Jansuppakitkun

X

Khunakorn Sunantham

Khunakorn Sunantham

Q

Prat Itthichaicharoen

Prat Itthichaicharoen

Toy

Jirayu Sahguansin

Jirayu Sahguansin

Frank

Warisara Jitpreedasakul

Warisara Jitpreedasakul

Mind

Pischapron Ketawattananon

Pischapron Ketawattananon

Mook

Sarawut Siriphet

Sarawut Siriphet

Man

Seasons (1)

No episode details available

Trailer

Similar Shows

The Singing Detective

The Singing Detective

Onna Tomodachi

Soul Mate

Such a Good Love

Such a Good Love

Head Over Heels

Head Over Heels

You May Also Like

Your Sky

One Tree Hill

Heated Rivalry

The Fosters

I Told Sunset About You

I Told Sunset About You

21 Days Theory (2022) - watchlistd

Dealer

Dealer

East of Eden

Lovely Writer

Lovely Writer

Kaew Lerm Korn

Kaew Lerm Korn

Jekyll

Jekyll

Only Friends

Only Friends

Love Mechanics

Love Mechanics

We Are

We Are

The Eclipse

The Eclipse

FOREVER

FOREVER