Explore season 1 episodes of The On1y One. Explore detailed ratings, episode summaries, and visualize how the show's quality evolved over time.
Sheng Wang's life takes a turn when he transfers to a new school and clashes with Jiang Tian, only to discover their parents are getting married. As they adjust to being stepbrothers, unexpected romantic feelings emerge, challenging their family dynamic and their own relationship.
1 Seasons
12 Episodes
Ended
DramaComedy
Best Episodes
S1E3 - Actually: We Can Give It a Go
★ 9.4
S1E8 - Sparkle: Teenagers
★ 9.4
S1E10 - Thief: Who Crossed the Boundary?
★ 9.4
Worst Episodes
S1E1 - Beginning: You’re Not My Brother
★ 9.0
S1E12 - New Beginning: Pain is Necessary for Rebirth
★ 9.1
S1E2 - Closer: It’s Only 4 Lips Touching Together
★ 9.2
Sheng Wang's attitude towards his stepmom drives a rift between him and Jiang Tian, but an impulsive night out brings them closer.
★ 9.4/10
(1765 votes)
#2
Sparkle: Teenagers
S1:E8
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.
★ 9.4/10
(1737 votes)
#3
Thief: Who Crossed the Boundary?
S1:E10
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.
★ 9.3/10
(1798 votes)
#4
Splendor: At the End of the World
S1:E4
From home to school, Sheng Wang and Jiang Tian learn to cherish each other's support and company. Meanwhile, tender feelings begin to emerge.
★ 9.3/10
(1799 votes)
#5
Closed: Waiting for the Wind
S1:E5
After discovering that someone beat up his bullies, Sheng Wang is caught off guard by Jiang Tian's abrupt decision to move away.
★ 9.3/10
(1783 votes)
#6
Plan : When to Open for Business?
S1:E6
A parent–teacher meeting becomes a burden for Sheng Wang and Jiang Tian. Later, teachers summon them both to face their bullies.
★ 9.3/10
(1874 votes)
#7
Belonging: Let’s Live on Campus
S1:E7
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.
★ 9.2/10
(1828 votes)
#8
Closer: It’s Only 4 Lips Touching Together
S1:E2
As Sheng Wang and Jiang Tian awkwardly start living under the same roof, an unexpected encounter at school leaves them both flustered.
★ 9.2/10
(1709 votes)
#9
Naked: The Blossom of Youth
S1:E9
Sheng Wang and Jiang Tian deliver impressive performances during their school's field day — until an unexpected injury lands one of them in trouble.
★ 9.2/10
(1688 votes)
#10
Kiss: It’s Only 4 Lips Touching Together?
S1:E11
Sheng Wang advances to the next round of an English contest with Jiang Tian. Later, he accidentally witnesses a private moment between two teachers.
★ 9.1/10
(1788 votes)
#11
New Beginning: Pain is Necessary for Rebirth
S1:E12
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.
★ 9.0/10
(1864 votes)
#12
Beginning: You’re Not My Brother
S1:E1
When Sheng Wang unexpectedly becomes Jiang Tian's stepbrother and classmate, both of their lives are suddenly thrown into disarray.
★ 9.0/10
(1864 votes)
#1
Beginning: You’re Not My Brother
S1:E1
When Sheng Wang unexpectedly becomes Jiang Tian's stepbrother and classmate, both of their lives are suddenly thrown into disarray.
★ 9.1/10
(1788 votes)
#2
New Beginning: Pain is Necessary for Rebirth
S1:E12
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.
★ 9.2/10
(1828 votes)
#3
Closer: It’s Only 4 Lips Touching Together
S1:E2
As Sheng Wang and Jiang Tian awkwardly start living under the same roof, an unexpected encounter at school leaves them both flustered.
★ 9.2/10
(1709 votes)
#4
Naked: The Blossom of Youth
S1:E9
Sheng Wang and Jiang Tian deliver impressive performances during their school's field day — until an unexpected injury lands one of them in trouble.
★ 9.2/10
(1688 votes)
#5
Kiss: It’s Only 4 Lips Touching Together?
S1:E11
Sheng Wang advances to the next round of an English contest with Jiang Tian. Later, he accidentally witnesses a private moment between two teachers.
★ 9.3/10
(1798 votes)
#6
Splendor: At the End of the World
S1:E4
From home to school, Sheng Wang and Jiang Tian learn to cherish each other's support and company. Meanwhile, tender feelings begin to emerge.
★ 9.3/10
(1799 votes)
#7
Closed: Waiting for the Wind
S1:E5
After discovering that someone beat up his bullies, Sheng Wang is caught off guard by Jiang Tian's abrupt decision to move away.
★ 9.3/10
(1783 votes)
#8
Plan : When to Open for Business?
S1:E6
A parent–teacher meeting becomes a burden for Sheng Wang and Jiang Tian. Later, teachers summon them both to face their bullies.
★ 9.3/10
(1874 votes)
#9
Belonging: Let’s Live on Campus
S1:E7
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.
★ 9.4/10
(1814 votes)
#10
Actually: We Can Give It a Go
S1:E3
Sheng Wang's attitude towards his stepmom drives a rift between him and Jiang Tian, but an impulsive night out brings them closer.
★ 9.4/10
(1765 votes)
#11
Sparkle: Teenagers
S1:E8
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.
★ 9.4/10
(1737 votes)
#12
Thief: Who Crossed the Boundary?
S1:E10
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.
★ 9.0/10
(1864 votes)
Beginning: You’re Not My Brother
S1:E1
When Sheng Wang unexpectedly becomes Jiang Tian's stepbrother and classmate, both of their lives are suddenly thrown into disarray.
★ 9.2/10
(1828 votes)
Closer: It’s Only 4 Lips Touching Together
S1:E2
As Sheng Wang and Jiang Tian awkwardly start living under the same roof, an unexpected encounter at school leaves them both flustered.
★ 9.4/10
(1814 votes)
Actually: We Can Give It a Go
S1:E3
Sheng Wang's attitude towards his stepmom drives a rift between him and Jiang Tian, but an impulsive night out brings them closer.
★ 9.3/10
(1798 votes)
Splendor: At the End of the World
S1:E4
From home to school, Sheng Wang and Jiang Tian learn to cherish each other's support and company. Meanwhile, tender feelings begin to emerge.
★ 9.3/10
(1799 votes)
Closed: Waiting for the Wind
S1:E5
After discovering that someone beat up his bullies, Sheng Wang is caught off guard by Jiang Tian's abrupt decision to move away.
★ 9.3/10
(1783 votes)
Plan : When to Open for Business?
S1:E6
A parent–teacher meeting becomes a burden for Sheng Wang and Jiang Tian. Later, teachers summon them both to face their bullies.
★ 9.3/10
(1874 votes)
Belonging: Let’s Live on Campus
S1:E7
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.
★ 9.4/10
(1765 votes)
Sparkle: Teenagers
S1:E8
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.
★ 9.2/10
(1709 votes)
Naked: The Blossom of Youth
S1:E9
Sheng Wang and Jiang Tian deliver impressive performances during their school's field day — until an unexpected injury lands one of them in trouble.
★ 9.4/10
(1737 votes)
Thief: Who Crossed the Boundary?
S1:E10
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.
★ 9.2/10
(1688 votes)
Kiss: It’s Only 4 Lips Touching Together?
S1:E11
Sheng Wang advances to the next round of an English contest with Jiang Tian. Later, he accidentally witnesses a private moment between two teachers.
★ 9.1/10
(1788 votes)
New Beginning: Pain is Necessary for Rebirth
S1:E12
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.