R21Netflix8.7(29)

The On1y One

Name: The On1y One
Director: Liu Kuang-Hui
Genre: Drama, Comedy
Released: 2024-08-22
Rating: 8.7

某某

DramaComedy

Watch Free

We checked 8 streaming services in India on 04 Jun 2026 at 12:12 IST

2024

1 Season

12 Episodes

Ended

R21

About

When their parents marry, two high school students become stepbrothers and navigate their relationship, turning from enemies into something more special.

#high school#stepbrother#boys' love (bl)#based on web novel#sentimental#adoring

Cast

Liu Dongqin

as Sheng Wang

Benjamin Tsang

as Jiang Tian

Samuel Ku

as Zhao Xi

Kenny Yen

as Lin Bei-ting

Lu Tingyu

as Yang Jing 'Jenny'

Duan Chun-hao

as Sheng Ming-yang

Jennifer Hong

as Jiang Ou

Yu An-shun

as Old Man Ding

Chen Wei-min

as Mr. Zhao

Seasons

Season 1

12 episodes2024

When their parents marry, two high school students become stepbrothers and navigate their relationship, turning from enemies into something more special.

Episodes

Season 1

See all 12episodes →

Beginning: You’re Not My Brother

Aug 22, 202449m9.2

When Sheng Wang unexpectedly becomes Jiang Tian's stepbrother and classmate, both of their lives are suddenly thrown into disarray.

Closer: It’s Only 4 Lips Touching Together

Aug 22, 202449m8.6

As Sheng Wang and Jiang Tian awkwardly start living under the same roof, an unexpected encounter at school leaves them both flustered.

Actually: We Can Give It a Go

Aug 28, 202456m9.6

Sheng Wang's attitude towards his stepmom drives a rift between him and Jiang Tian, but an impulsive night out brings them closer.

Splendor: At the End of the World

Aug 29, 202457m9.7

From home to school, Sheng Wang and Jiang Tian learn to cherish each other's support and company. Meanwhile, tender feelings begin to emerge.

Closed: Waiting for the Wind

Sep 4, 202454m9.7

After discovering that someone beat up his bullies, Sheng Wang is caught off guard by Jiang Tian's abrupt decision to move away.

Plan : When to Open for Business?

Sep 5, 202451m10.0

A parent–teacher meeting becomes a burden for Sheng Wang and Jiang Tian. Later, teachers summon them both to face their bullies.

Belonging: Let’s Live on Campus

Sep 11, 202447m9.8

Sheng Wang learns more about Jiang Tian's childhood during a lunch break. Worried about Sheng Wang's absence, Jiang Tian skips class to track him down.

Sparkle: Teenagers

Sep 12, 202448m9.7

Sheng Wang's wish to move out of the house takes his family by surprise. Now officially roommates, he and Jiang Tian brace for a new chapter together.

Where does The On1y One rank today?

The On1y One is #2687 on the CineFlixo Daily Streaming Charts today.

Highest: #2687
Top 10: 0 days
Top 100: 0 days

Watch The On1y One Online Free — All Episodes in HD

Stream The On1y One online free in HD on CineFlixo. A highly acclaimed drama and comedy series originally produced in Chino and released in 2024, it's earned a solid 8.7/10 from 29 viewers worldwide.

About The On1y One

When their parents marry, two high school students become stepbrothers and navigate their relationship, turning from enemies into something more special. Across 1 season and 12 episodes, originally airing on Netflix.

The On1y One Cast and Characters

The cast features Liu Dongqin (as Sheng Wang), Benjamin Tsang (as Jiang Tian), Samuel Ku (as Zhao Xi), Kenny Yen (as Lin Bei-ting), and Lu Tingyu (as Yang Jing 'Jenny'). Their performances are a major reason The On1y One has built such a passionate audience.

Where to Watch The On1y One Online

On CineFlixo you can watch The On1y One free — no account, no credit card, no ads in the middle of the show. We stream the full series in 720p / 1080p HD, with subtitles when available, on any device: phone, tablet, laptop, or smart TV browser.

▶ Watch The On1y One Now

Why People Are Watching The On1y One

There's a reason The On1y One keeps showing up on "must-watch" lists. What makes it work is emotional weight that hits where it counts and sharp comedic timing that lands consistently. If you enjoy Chino 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 The On1y One

Where can I watch The On1y One online for free?

You can watch The On1y One online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.

How many episodes does The On1y One have?

The On1y One has 12 episodes across 1 season. All episodes are available to stream right here on CineFlixo.

Is The On1y One good? What's the rating?

The On1y One holds a 8.7/10 rating based on 29 reviews — genuinely excellent.

Who is in the cast of The On1y One?

The main cast includes Liu Dongqin, Benjamin Tsang, Samuel Ku, and Kenny Yen, plus a strong supporting ensemble.

Is The On1y One available in Chino?

Yes — The On1y One was originally produced in Chino and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.

When was The On1y One released?

The On1y One first aired in 2024.

Do I need an account to watch The On1y One on CineFlixo?

No. CineFlixo is free and you can watch The On1y One 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 The On1y One, check out Strange Days at Blake Holsey High, Buffy the Vampire Slayer, Boston Public, My Life as a Teenage Robot, and Harmony of Mille-Feuille.

Frequently Asked Questions

Where can I watch The On1y One for free?

You can watch The On1y One online for free on CineFlixo. All 12 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 The On1y One have?

The On1y One currently has 1 season and a total of 12 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 CineFlixo and continue watching from where you left off.

What is The On1y One about?

When their parents marry, two high school students become stepbrothers and navigate their relationship, turning from enemies into something more special. It belongs to the Drama, Comedy genres.

In which language is The On1y One originally available?

The On1y One was originally produced in ZH. On CineFlixo the show is available in its original ZH audio. Check the player options on the watch page for available subtitle tracks.

When was The On1y One first released?

The On1y One first premiered on August 22, 2024 (2024). The series has since concluded its run.