

When their parents marry, two high school students become stepbrothers and navigate their relationship, turning from enemies into something more special.
Drama, Comedy • Series • 2024 • 1 season
Starring: Liu Dongqin, Benjamin Tsang, Samuel Ku
Created by: Mu Suli, Liu Kuang-Hui

S1 E1 - Beginning: You’re Not My Brother
When Sheng Wang unexpectedly becomes Jiang Tian's stepbrother and classmate, both of their lives are suddenly thrown into disarray.
Aug 22, 2024 • 49m

S1 E2 - Closer: It’s Only 4 Lips Touching Together
As Sheng Wang and Jiang Tian awkwardly start living under the same roof, an unexpected encounter at school leaves them both flustered.
Aug 22, 2024 • 49m

S1 E3 - Actually: We Can Give It a Go
Sheng Wang's attitude towards his stepmom drives a rift between him and Jiang Tian, but an impulsive night out brings them closer.
Aug 28, 2024 • 56m

S1 E4 - Splendor: At the End of the World
From home to school, Sheng Wang and Jiang Tian learn to cherish each other's support and company. Meanwhile, tender feelings begin to emerge.
Aug 29, 2024 • 57m

S1 E5 - Closed: Waiting for the Wind
After discovering that someone beat up his bullies, Sheng Wang is caught off guard by Jiang Tian's abrupt decision to move away.
Sep 4, 2024 • 54m

S1 E6 - Plan : When to Open for Business?
A parent–teacher meeting becomes a burden for Sheng Wang and Jiang Tian. Later, teachers summon them both to face their bullies.
Sep 5, 2024 • 51m

S1 E7 - Belonging: Let’s Live on Campus
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.
Sep 11, 2024 • 47m

S1 E8 - Sparkle: Teenagers
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.
Sep 12, 2024 • 48m

S1 E9 - Naked: The Blossom of Youth
Sheng Wang and Jiang Tian deliver impressive performances during their school's field day — until an unexpected injury lands one of them in trouble.
Sep 18, 2024 • 50m

S1 E10 - Thief: Who Crossed the Boundary?
A sprained ankle forces Sheng Wang to temporarily return home. Just as he sneaks back to his dorm, an intruder appears and causes chaos. Jenny Yang starts to have a crush on Lin Bei Ting.
Sep 19, 2024 • 53m

S1 E11 - Kiss: It’s Only 4 Lips Touching Together?
Sheng Wang advances to the next round of an English contest with Jiang Tian. Later, he accidentally witnesses a private moment between two teachers.
Sep 25, 2024 • 49m

S1 E12 - New Beginning: Pain is Necessary for Rebirth
While Sheng Wang juggles school and his growing feelings for Jiang Tian, a crucial test will determine whether they can stay in the same class.
Sep 26, 2024 • 58m
The On1y One
When their parents marry, two high school students become stepbrothers and navigate their relationship, turning from enemies into something more special.
Drama, Comedy • TV Series • 2024

Trailer
[ENG SUB] 某某 The On1y One | 30-sec Trailer︱GagaOOLala