The On1y OneWhen their parents marry, two high school students become stepbrothers and navigate their relationship, turning from enemies into something more special.
DirectorLiu Kuang-Hui
WritersMu Suli, Wang Yu-chen, Liu Kuang-Hui
Beginning: You’re Not My Brother
Aug 22, 2024
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, 2024
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, 2024
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, 2024
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, 2024
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, 2024
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, 2024
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, 2024
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.
Naked: The Blossom of Youth
Sep 18, 2024
Sheng Wang and Jiang Tian deliver impressive performances during their school's field day — until an unexpected injury lands one of them in trouble.
Thief: Who Crossed the Boundary?
Sep 19, 2024
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.
Kiss: It’s Only 4 Lips Touching Together?
Sep 25, 2024
Sheng Wang advances to the next round of an English contest with Jiang Tian. Later, he accidentally witnesses a private moment between two teachers.
New Beginning: Pain is Necessary for Rebirth
Sep 26, 2024
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.
Dominic Kebre
@Niso2020
When ”The On1y One” was announced and it was apparent that it was more or less another adaptation of the first ”Addicted” book, I wondered if the world really needed yet another series about stepbrothers. Well, maybe the world didn't really need this series, but unlike the Thai adaptation of ”Addicted”, which failed in every aspect, this one can compare to the groundbreaking series from mainland China. I would even say it is almost as good, and therefore I'm glad that it was actually made. Sheng Weng's (Liu Dong Qin) life changes completely when he not only has to change to a school where he meets introvert Jiang Tian (Benjamin Tsang), who also becomes his stepbrother when Sheng Weng's father marries Jiang Tian's mother, so that the boys have to live under the same roof. As would be expected from this kind of BL series, they move from enemies to friends, and from friends to lovers, as they begin to understand each other. The boys's opposing characters are displayed sensitively thanks to a well written script, good directing and amazing acting. Not only the leads', and especially Benjamin Tsang's, popularity have skyrocketed, but Andy Chen, who plays the support role of Gao Tian Yang, also captured viewers' hearts.
