21 Days Theory
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.
Cast
Patsapon Jansuppakitkun
X
Khunakorn Sunantham
Q
Prat Itthichaicharoen
Toy
Jirayu Sahguansin
Frank
Warisara Jitpreedasakul
Mind
Pischapron Ketawattananon
Mook
Sarawut Siriphet
Man
Seasons
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.
E1Episode 1
Aug 7, 2022
Q meets X and is challenged to beat him in 21 days—sparking rivalry and unexpected bonds.
E2Episode 2
Aug 14, 2022
After X’s injury, Q tends to him closely, giving them a chance to see each other differently.
E3Episode 3
Aug 21, 2022
As their days together grow, Q’s feelings shift, and mutual understanding slowly deepens.
E4Episode 4
Aug 28, 2022
At a turning point, Q and X must face whether the “21-day theory” will define their future.
Videos
Storyline
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.
