The On1y One - Season 1

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

12 Episodes

Beginning: You’re Not My Brother

Season 1 - Episode 1

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

Season 1 - Episode 2

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

Season 1 - Episode 3

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

Season 1 - Episode 4

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

Season 1 - Episode 5

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?

Season 1 - Episode 6

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

Season 1 - Episode 7

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

Sparkle: Teenagers

Season 1 - Episode 8

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...

Naked: The Blossom of Youth

Season 1 - Episode 9

Sheng Wang and Jiang Tian deliver impressive performances during their school's field day — until an unexpected injury lands one of them in ...

Thief: Who Crossed the Boundary?

Season 1 - Episode 10

A sprained ankle forces Sheng Wang to temporarily return home. Just as he sneaks back to his dorm, an intruder appears and causes chaos. Jen...

Kiss: It’s Only 4 Lips Touching Together?

Season 1 - Episode 11

Sheng Wang advances to the next round of an English contest with Jiang Tian. Later, he accidentally witnesses a private moment between two t...

New Beginning: Pain is Necessary for Rebirth

Season 1 - Episode 12

While Sheng Wang juggles school and his growing feelings for Jiang Tian, a crucial test will determine whether they can stay in the same cla...