

Who Is the Sender?
2022-10-11 · 15 min / episode · ★ 7.2
Kuwazuru Mitsuki is a second year student at Arakawa Nishi High School. One day, her homeroom teacher, Tachibana, suddenly announces the start of the "Letter Game", where every student has to write a letter with his/her true feelings to each of the classmates. However, the "letter" will not include the sender's name. At first, there were a lot of bad jokes and silly "letters", but they slowly accelerate to revealing secrets and confessions, which make everyone question, "Who is the sender?" and "Who will be named next?" This game allows the students to become more aware of each other's hidden worries and thoughts, which slowly deepens the bond among the classmates. Meanwhile, Mitsuki tries to search for the sender of the letter sent to her and she discovers a secret hidden in this "letter game".
Trailers are previews, not full movies.
No authorized playback source configured. Use the legal watch options below.
Production details
- Creators
- Unavailable
- Production companies
- TBS
- Countries
- Japan
- Status
- Ended
Top Cast
Sara KouzawaMitsuki Kuwazuru
Kaito SakuraiIkuru Narita
Taiyu FujiwaraTouya Ichinose
Tokio EmotoJyunta Tachibana
Kiita KomagineKen Mitarai
Airu KubozukaHiroto Baba
Ryota MiuraYutarou Moro
Kouta NomuraUjita Seiji
SanariKazuta
Ryutaro ImaiGaku OgidaTitle information and images are supplied by TMDb. Explore our discovery guide for advice on comparing metadata and legal viewing options.
Where to watch
Availability provided by JustWatch via TMDb. Offers can change. Provider links are listed on TMDb; full playback requires a separately authorized source.
Availability not listed for this country.
Seasons & episodes
Recommendations

Maddie, a teen stuck in the afterlife investigating her own mysterious disappearance, goes on a crime-solving journey as she adjusts to high school purgatory, but the closer she gets to discovering the truth, the more secrets and lies she uncovers.

The story of what happens when five high schoolers walk into detention and only four make it out alive. Everyone is a suspect, and everyone has something to hide.

Based on the Pretty Little Liars series of young adult novels by Sara Shepard, the series follows the lives of four girls — Spencer, Hanna, Aria, and Emily — whose clique falls apart after the disappearance of their queen bee, Alison. One year later, they begin receiving messages from someone using the name "A" who threatens to expose their secrets — including long-hidden ones they thought only Alison knew.

When Lucy Albright and Stephen DeMarco meet at college, they are at that formative age when seemingly mundane choices lead the way to irrevocable consequences. They quickly fall into an addictive entanglement that will permanently alter not only their lives, but the lives of everyone around them.

Ominous letters. Strange neighbors. Sinister threats. A family moves into their suburban dream home, only to discover they've inherited a nightmare.

A small-town cop suspects that the local school for troubled teens — and its dangerously charismatic founder — may not be all it seems.

A group of ordinary people who stumble onto a puzzle hiding just behind the veil of everyday life come to find that the mystery winds far deeper than they ever imagined.

After discovering she's inherited a remote island in Canada from the estranged grandfather she was never allowed to meet, 17-year-old Annie Jacobson decides to investigate, pulling her into a world of buried secrets, unexpected sisterhood, and the complicated family history she was never meant to find.

Nancy Drew makes plans to leave her hometown for college, but finds herself drawn into a supernatural murder mystery instead.

Ryan Atwood, a teen from the wrong side of the tracks, moves in with a wealthy family willing to give him a chance. But Ryan's arrival disturbs the status quo of the affluent, privileged community of Newport Beach, California.

High school student Clay Jensen lands in the center of a series of heartbreaking mysteries set in motion by a friend's tragic suicide.

To be united with her crush, a hopeless romantic summons the ghost in the girls' bathroom at her school. But she's shocked when the ghost is a boy!

John Sugar is a dashing private eye navigating the dark corners of sunny LA. Though he sees only the good in humanity, Sugar is haunted by a secret too dangerous to expose.

When detective Andrea 'Andie' Whitford is transferred to the Victorian High Country, she is thrust into a baffling mystery of five missing persons who have vanished into the wilderness. Through an edge-of-the-seat, high-stakes investigation, Andie uncovers a complex web involving murder, deceit and revenge.

After his class' school trip fund is stolen, Yuichi and his best friends are abducted to play a debt repayment game; there is more than money on the line, as their bonds are tested with dark secrets and a lingering question of who is behind it all.

Follow Mickey Bolitar after the death of his father leads him to start a new life in suburban New Jersey. When another new student disappears, Mickey finds himself tangled in a web of secrets. With the help of two new friends, Spoon and Ema, they reveal a dark underground that may hold the answers to decades of disappearances.

When Frank and Joe Hardy arrive in Bridgeport, they set out to uncover the truth behind the recent tragedy that has changed their lives. In doing so, they stumble upon something much more sinister - something only the Hardy Boys can stop.

The story centers on Keitarou Gentouga, who has the ability to be a spirit medium. In junior high school, he got someone else wrapped up in a spirit possession incident, and he has been a shut-in for more than two years. As he reintroduces himself to society as a private tutor, he meets a genius girl named Yayoi Houzuki. Yayoi is instantly able to tell that Keitarou has skill as a spirit medium, and she invites him to go with her to a haunted location. The two then start their journey capturing evil spirits.

When Kouichi arrives at his new school, he immediately senses something frightening in the atmosphere of his new class, something that no student wants to talk about and that seems to be related to a mysterious and silent girl.

Follow the lives of an elite group of young dancers who train at The Next Step Studio.
Similar titles

Six months ago, life went dark for the underworld negotiator Kida when his lifelong friend and fellow former outcast Makoto became embroiled in a deadly plot. Makoto had risen to become the head of a powerful trading firm, but the events that unfolded on Christmas Eve put an end to all that. Since then, Kida has continued to drift through life without a single bright spark to light up his life. Nobody cares if he lives or dies except his underworld boss, who values Kida’s inimitable skills.

Two college students battle distance and doubts, striving to maintain their love after exams challenge their relationship.

Takeshiro Shikota is a 27-year-old pediatrician in Hokkaido, Japan. He was born and raised in Hokkaido. One day, Takeshiro is transferred to the newly established PICU (Pediatric Intensive Care Unit). The unit is for children under the age of 15 who require advance and intensive treatment. There, he meets Dr. Hajime Ueno. Hajime is a pioneer in his field and hopes to establish PICU all over Japan. His goal is to bring sick children to PICU as quickly as possible and accept them under any circumstances. Meeting with Hajim, changes Takeshiro life as a pediatrician.

The "first penguin" is the courageous first penguin that dives into the sea filled with enemies. Iwasaki Nodoka is a young single mother with no money, no house, and no work. While Nodoka decides that she will do anything to eat, she meets a fisherman who offers her "10,000 yen to rebuild the coast". Thus, Nodoka now carries the dreams of the local fishermen whose lives are on her shoulders. Despite her limited knowledge of the fishing industry, Nodoka does her best working with the stubborn sea men, breaks through the old common sense and customs with her boldness, and creates a revolution in the industry.

After inheriting her father's struggling store, Wan bonds with a charming regular who offers to help, but her new friend's family have other ideas.

When seven college students find themselves trapped in a deadly game, two detectives compete to find the killer — even as their attraction grows.

An amnesiac journalist and a criminologist must work together to solve a string of brutal murders, slowly uncovering dangerous secrets in their past.

A grieving student pursuing priesthood faces a crisis of faith when he falls for a troubled new classmate in a world ruled by strict dogma.

A skeptical doctor and a fortune teller must hide from a shadowy threat in a remote village, where danger and romance intertwine.

This semester, studious Shane is tasked with tutoring feckless and flirtatious Kit. Meanwhile, just when Kim is ready to give up on love, new kid Mon arrives and it's love at first sight.

In 1915, Rati returns to Siam and finds connection with Thee, the heir to a wealthy and powerful family, which seeks to sabotage the relationship.

Six months ago, Hikaru vanished for a week. Now, as his best friend Yoshiki senses something amiss and confronts him, the harrowing truth emerges.


Fabulously wealthy London housewife Sammy, is forced to return to the town in Australia she grew up in. But in coming home, Sammy must revisit her past and the events that led her to flee as a teenager years ago.

Teenagers Cyclops, Jean Grey, Rogue, Nightcrawler, Shadowcat, and Spike fight for a world that fears and hates them.


Privileged heir Subaru Tendo is forced to work as a new hire and live in a dormitory at his family's apparel company to learn humility. There, he meets Madoka, a thrifty and outspoken coworker who challenges his ego.

A story that spans ten years follows a group of young men and women from their schooldays until the time they enter society as adults. It begins in the year 2005. Bai Yi Han has gotten accepted to a prominent school. She becomes attracted to school genius Lin Xing Ze and with the help of her close friends, she tries to gain his approval. While they fail in the endeavor, they succeed in getting his attention. At the same time, Yang Tian Ran transfers from abroad and becomes acquainted with Bai Yi Han. Chen Si Yu starts to fall for Zhou Xiao Yu. In the long and winding road of youth, Bai Yi Han, Lin Xing Ze, and Yang Tian Ran are caught in a love triangle. The addition of Chen Si Yu and Zhou Xiao Yu further complicates the relationship between the group. As time passes and they become adults, destiny brings forth a different ending.

A disillusioned teacher finds unexpected hope and purpose when she becomes a housemother to a struggling boy band led by her former student.

Hae-na who is bound to inherit her family curse which is turning into a dog after getting her first kiss. The only way to break the curse is to get a second kiss. The problem is the guy who gave Hae-na her first kiss is afraid of dogs.