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Who Is the Sender?

Name: Who Is the Sender?
Director: Izuru Kumasaka
Genre: Mystery, Drama
Released: 2022-10-11
Rating: 7.2

差出人は、誰ですか？

MysteryDrama

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We checked 8 streaming services in India on 06 Jun 2026 at 16:59 IST

2022

1 Season

40 Episodes

Ended

About

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".

#high school#lgbt#teenage pregnancy#secret crush#human mystery

Cast

Sara Kouzawa

as Mitsuki Kuwazuru

Kaito Sakurai

as Ikuru Narita

Taiyu Fujiwara

as Touya Ichinose

Tokio Emoto

as Jyunta Tachibana

Kiita Komagine

as Ken Mitarai

Airu Kubozuka

as Hiroto Baba

Ryota Miura

as Yutarou Moro

Seiko Utsumi

as Hana Watanabe

Kouta Nomura

as Ujita Seiji

Sanari

as Kazuta

Ryutaro Imai

as Gaku Ogida

Seasons

Season 1

40 episodes2022

Episodes

Season 1

See all 40episodes →

Where does Who Is the Sender? rank today?

Who Is the Sender? is #5681 on the HinFlix Daily Streaming Charts today.

Highest: #5681
Top 10: 0 days
Top 100: 0 days

Watch Who Is the Sender? Online Free — All Episodes in HD

If you've been searching for Who Is the Sender? all episodes in HD, HinFlix has you covered. This well-rated Japanese mystery and drama title from 2022 is available to stream instantly — no ads to fight through, no paid subscriptions, no annoying redirects.

About Who Is the Sender?

Who Is the Sender? Cast and Characters

The cast features Sara Kouzawa (as Mitsuki Kuwazuru), Kaito Sakurai (as Ikuru Narita), Taiyu Fujiwara (as Touya Ichinose), Tokio Emoto (as Jyunta Tachibana), and Kiita Komagine (as Ken Mitarai). Their performances are a major reason Who Is the Sender? has built such a passionate audience.

Where to Watch Who Is the Sender? Online

Want to watch Who Is the Sender? online without paying? HinFlix is the easiest way. Click play and the series starts in seconds. No popups, no "5 day trial that auto-charges" — just the show.

▶ Watch Who Is the Sender? Now

Why People Are Watching Who Is the Sender?

Who Is the Sender? flies under the radar but it deserves your attention. What makes it work is emotional weight that hits where it counts and tight pacing that earns its twists. If you enjoy Japanese storytelling that doesn't follow the same tired beats, this is the kind of show you'll end up recommending to friends.

Frequently Asked Questions about Who Is the Sender?

Where can I watch Who Is the Sender? online for free?

You can watch Who Is the Sender? online free on HinFlix. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.

How many episodes does Who Is the Sender? have?

Who Is the Sender? has 40 episodes across 1 season. All episodes are available to stream right here on HinFlix.

Is Who Is the Sender? good? What's the rating?

Who Is the Sender? holds a 7.2/10 rating based on 4 reviews — well above average.

Who is in the cast of Who Is the Sender??

The main cast includes Sara Kouzawa, Kaito Sakurai, Taiyu Fujiwara, and Tokio Emoto, plus a strong supporting ensemble.

Is Who Is the Sender? available in Japanese?

Yes — Who Is the Sender? was originally produced in Japanese and that's the version you'll stream here on HinFlix. English subtitles are provided when available.

When was Who Is the Sender? released?

Who Is the Sender? first aired in 2022.

Do I need an account to watch Who Is the Sender? on HinFlix?

No. HinFlix is free and you can watch Who Is the Sender? without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.

Similar Series You Might Like

If you enjoyed Who Is the Sender?, check out Le Coup de Foudre, 16 лет и 9 месяцев, Then You Try Making It!, We Are Who We Are, and Too Young to Go Steady.

Frequently Asked Questions

Where can I watch Who Is the Sender? for free?

You can watch Who Is the Sender? online for free on HinFlix. All 40 episodes across 1 season are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.

How many seasons and episodes does Who Is the Sender? have?

Who Is the Sender? currently has 1 season and a total of 40 episodes. The series status is "Ended", so the episode count may grow as new seasons are released. You can browse the full episode list on HinFlix and continue watching from where you left off.

What is Who Is the Sender? about?

In which language is Who Is the Sender? originally available?

Who Is the Sender? was originally produced in JA. On HinFlix the show is available in its original JA audio. Check the player options on the watch page for available subtitle tracks.

When was Who Is the Sender? first released?

Who Is the Sender? first premiered on October 11, 2022 (2022). The series has since concluded its run.