Watch Online Stream

21 Days Theory

202238m

★ 7.0

th

Drama

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.

Where to Watch 21 Days Theory Free Online

Watch 21 Days Theory full TV show online for free in HD quality on Watch Online Stream. Stream from Netflix, HBO Max, Disney+, Prime Video, and more without any subscription or sign up. 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.

Episodes

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

Similar Titles

Death Comes to Pemberley

Death Comes to Pemberley

A British television drama based on P. D. James' novel of the same name, a murder mystery sequel to Jane Austen's Pride and Prejudice. Six years after the union of Elizabeth Bennet and Mr. Darcy, Lydia Wickham barges into Pemberley screaming that her husband has been murdered.

Attention Please

Attention Please

Yoko, a sort of modern tomboy, almost by chance gets her sights set stubbornly on becoming a Cabin Attendant (CA), a type of woman the men are all fond of, but a role which is completely out of character for her. (This is a drama about young people including a girl who wishes to work on the stage of big sky) The headstrong Yoko Misaki (Aya Ueto) is a boyish girl who loves rock’n roll but hates dishonesty and has never once worn high heels. A chance comment by one of her friends causes her to aim for the job of a cabin attendant on an airline, which is completely out of character. Although she also feels the work is not up her alley, Yoko starts to prepare for the entrance examination with vigor, exhibiting her inborn never-say-die spirit and miraculously passing the examination. Naively assuming that she would immediately become a cabin attendant upon passing the test, Yoko of course has stiff training awaiting her.

To Heart 2

To Heart 2

Following her graduation from middle school, Yuzuhara Konomi enters the same high school as Kouno Takaaki, her childhood friend. As the new school year begins, they meet their childhood friend Kousaka Tamaki, as well as many new acquaintances. Unbeknownst to the group, their encounters with each other will soon lead to many memorable adventures.

The Word

The Word

A document is discovered that appears to be an ancient eyewitness account of the life of Jesus Christ. A public relations executive is hired to publicize this document as a new version of the Bible, but he finds himself enmeshed in controversy and intrigue.

The Return of the Psammead

The Return of the Psammead

Four children—George, Ellie, Pip, and Lucy—discover a magical sand fairy known as 'The Psammead' that grants wishes, leading to meeting their future selves and their aunt as a child.

The Good Love

The Good Love

Amor Del Bueno is a 2004 telenovela produced by Venevisión and Iguana Producciones. Venezuelan actors Coraima Torres and Ricardo Álamo star as the main protagonists.

NANA

NANA

Nana Osaki and Nana Komatsu meet while traveling to Tokyo in pursuit of their respective dreams, and decide to be roommates. Although drastically different people, the two become very close and together they find out if their biggest dreams have room for their best friend.

Outlander

Outlander

The story of Claire Randall, a married combat nurse from 1945 who is mysteriously swept back in time to 1743, where she is immediately thrown into an unknown world where her life is threatened. When she is forced to marry Jamie, a chivalrous and romantic young Scottish warrior, a passionate affair is ignited that tears Claire's heart between two vastly different men in two irreconcilable lives.

Tourist

Tourist

In this drama, each of three troubled women encounter a mysterious and charismatic man while traveling to Bangkok, Taipei, and Ho Chi Minh.

If I Can Love You So

If I Can Love You So

Betrayed by love, world-renowned pianist, Geng Mochi, and popular radio host, Bai Kao’er, meet under the worst of circumstances. Crossing paths at the funerals of their departed spouses, these wounded souls find a rare sort of comfort in each other’s company. Following their hearts to places most unexpected, the once jilted lovers find healing is possible even when it seems impossible. But what fate has brought together, fate can also tear apart. Caught up in a chaotic world of broken hearts, forbidden love, and tragic fates, Geng Mochi and Bai Kaoer must decide if their new-found love is worth fighting for.

AlRawabi School for Girls

AlRawabi School for Girls

The bullied outcasts at prestigious Al Rawabi School for Girls plot a series of risky takedowns to get back at their tormentors.

Kungamordet

Kungamordet

A penetrating portrayal of the innermost essence of power, an exciting story about those who rule and those who suffer, about power and powerlessness, and ultimately: about perpetrators and victims. It is election night. Linda Jakobsson, married for 30 years to the Social Democratic finance minister Gert Jakobsson, sits at home on the sofa watching the election drama unfold on TV. Linda hears the commentators talking about the Social Democrats' biggest defeat, and just a glimpse of her better half on TV is enough: she can see that he has now decided to crush Prime Minister Per Viksten and take over as party leader himself. She can see it because she knows her husband as the power-hungry person he is. Mentally and physically, he has been exploiting his power over her for many years now.

Number Six

Number Six

Won Tak, Min Joo, Eun Kyung, Chang Kyung, Se Joon, and Se Ra were the best of friends. Inseparable from childhood, they did everything together, sharing every moment of their lives up until the moment they all left for college. Best friends for life, there was nothing this group kept from each other. Or so they thought. Ten years later, the secrets they kept harbored in their hearts come to light, revealing a tangled web of complicated emotions, first loves, and profound friendship. It doesn’t take long to realize even the closest of friends can hide some pretty big secrets.

Washington: Behind Closed Doors

Washington: Behind Closed Doors

CIA director Bill Martin knows that an incoming president means a new direction for the country—and another set of eyes on the top secret Primula Report. Martin tries to build a rapport with his new boss, but President Richard Monckton is more interested in settling old scores and cleaning house with the help of the FBI.

Nicholas Nickleby

Nicholas Nickleby

Nicholas Nickleby, a young boy in search of a better life, struggles to save his family and friends from the abusive exploitation of his coldheartedly grasping uncle.

Put Your Head on My Shoulder

Put Your Head on My Shoulder

As Si Tu Mo's graduation is nearing, she is confused about her future plans. Her ordinary days are suddenly shaken up when the genius Physics student Gu Wei Yi appears in her life. The two accidentally end up living together and chaos begins.

Between Us The Series

Between Us The Series

A story about love, lies, and sacrifices between two boys.

Rattan

Rattan

An encounter leads to a lifetime of memories. An ordinary man accidentally wakes the mysterious Si Teng from decades of slumber. In helping her search for her identity, they overcome many obstacles to grow together in love. On a journey to retrace his ancestry, young designer Qin Fang accidentally sets off a contraption that leads to him to a woman named Si Teng who is bewitchingly beautiful and powerful. Confused by the fragmented memories in her mind, Si Teng claims to be Qin Fang's new master and forces him to aid in her plans. Si Teng gradually opens up to Qin Fang and grows to discover the novelty and wonders of living. However, Bai Ying who has became crazed from her obsession becomes a roadblock in their relationship.

Perfect World

Perfect World

Tsugumi, who works at an interior design firm, has an unexpected encounter with her first love from high school, Itsuki, at a dinner with her client’s whole comp any, an architectural firm. Seeing Itsuki, who is a registered architect with a first-class license and is quite charming, brings back the faint memories from high school. In the middle of dinner, he quietly slips away and begins to head home, getting into a wheelchair. “You didn’t know? Itsuki was in an accident in college, and he can’t walk.” Tsugumi, her pulse racing, takes a step back and thinks to herself, “I can’t love someone in a wheelchair. It’s just not possible to date someone like that.” But when she accepts the reality of the situation and interacts with Itsuki, who struggles but fights to survive each day, she becomes overwhelmed with emotions that she has kept since her youth.

Pride

Pride

Haru Satonaka is the captain of an ice-hockey team, a star athlete who stakes everything on hockey but can only consider love as a game. Aki Murase is a woman who has been waiting for her lover who went abroad two years ago. These two persons start a relationship while frankly admitting to each other that it is only a love game. …The result is the unfolding of a drama of people with their respective pasts and with their pride as individuals.