KO One_
Original: 終極一班
Gifted with special powers, fighting skills and slick hair, the rowdy KO One navigates tough friendships and high school romance.
Network
GTV
Episodes
211
Updated Feb 16, 2026
WHERE TO WATCH
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Overview
KO One has 5 seasons with 211 episodes spanning 2005-2018.
Year context
KO One first aired 21 years ago in 2005.
CAST (17)
Jiro Wang
Wang Dadong
Aaron Yan
Ding Xiaoyu
Danson Tang
Lei Kesi / Wu Shiduo
Pets Tseng
Lei Ting
Melody Yin
Ma Zhenhuan
Lan Si Luo
Wes Lo
Gu Zhan
Wen Yu-Fei
Qiu Qiu
Calvin Chen
Wang Ya Se
Yi-Chen Tsai
Cai Wu Xiong
Jiang Ruize
Tai Yang
Toyoda Katsunari
Shen Mi
Zhongxi Jin
Xiao Hu
Chen Shimin
Tong Tong
Chen Ying Yen
Xiao Ba
Brent Hsu
Bi Ling
Sunnee
Lan Si Chun
SEASONS (5 seasons, 211 episodes)
SEASON 1Season 1 - KO One
01
Episode 01
The class "KO One" takes students with all kinds of issues. This semester, a transfer student tries to vie for the "boss" position with Da-dong.
02
Episode 02
The sound of Ding Xiao-yu playing the piano dissolves the tension. Da-dong lends out a helping hand when Arthur's father is in danger.
03
Episode 03
On the way back from visiting her brother's tomb, Tian Xin is kidnapped and forced to resign her teaching job. Da-dong's buddy returns to the…
04
Episode 04
Jin Bao-san witnesses a side of Lei Ke-si that is unknown to others, but Da-dong calls on his classmates to take side jobs to help…
05
Episode 05
Lei Ke-si goes out of his way to please all the teachers and classmates while framing Arthur, making it difficult for the latter to reveal…
06
Episode 06
An unexpected visitor turns up at Da-dong's house. Dean Jia Yong and Lei Ke-si both want to turn An-qi into their pawn.
07
Episode 07
A madly jealous Lei Ke-si continues to mislead An-qi as he tries to take this opportunity to confess his love to her. Arthur devises a…
08
Episode 08
Lei Ke-si finally shows his true colors and launches a surprise attack on Da-dong. The two fight fiercely, yet one of them stops at the…
09
Episode 09
Da-dong and An-qi gets back together as a lovey-dovey couple. A difficult decision awaits Tian Xin after she gets a new boyfriend.
10
Episode 10
Da-dong begins to rebel against the homeroom teacher and reverts back to his old aggressive self, which arouses the suspicion of An-qi and Arthur.
11
Episode 11
Da-dong wants to embarrass Shao-zong, who ends up winning the admiration of his classmates. Tian Xin uncovers the truth behind Shao-zong's exhaustion.
12
Episode 12
The entire class comes up with an idea to help Shao-zong reconcile with his biological mother. An-qi and Xiao-yu seem to be more than friends.
13
Episode 13
A mystery man appears multiple times but leaves each time when Tian Xin arrives. Da-dong's pastor dad has been hiding an astonishing secret.
14
Episode 14
The class teacher leaves without a word. An-qi comes over to comfort an unhappy Da-dong, who loses consciousness in an instant.
15
Episode 15
Da-dong receives a letter from An-qi. Being taken by surprise, he acts in a flurry and falls prey to Hei Long and Wu Shi.
16
Episode 16
Two sisters transfer to the class, and the younger one falls in love with Arthur at first sight. The new teacher puts the class in…
17
Episode 17
A comic set that predicts the future is about to be reprinted, which not only attracts great attention, but also people who intend to kill…
18
Episode 18
Da-dong sets out to advance his fighting power. Arthur becomes unusually short-tempered after being injured by his own sword in the stone.
19
Episode 19
Arthur becomes so delirious that he wants to harm those around him, but a powerful force of energy stops him at the critical moment.
20
Episode 20
Arthur must face a stern challenge. Wu-xiong's body is rapidly aging. A familiar face returns.
21
Episode 21
Da-dong's parents are missing, now even Arthur's father disappears for no reason. Everyone prepares for a battle of life and death.
SEASON 2Season 2 - KO One Return
01
Episode 1
After falling through the crack of time and space, Da-dong finds that everything familiar has changed. It turns out that ten years have gone by.
02
Episode 2
The new boss of class KO One and Da-dong are at odds with each other. While chasing a thief, Da-dong accidentally sees a secret that…
03
Episode 3
Upon learning of Wan-jun's secret, Da-dong asks an old classmate to help. Ling-ling is in a critical condition, which forces Wan-jun to make a choice.
04
Episode 4
Unaware that he has become a spoiler, Da-dong takes part in a school election. Huang Fei, the class teacher hates Da-dong more and more each…
05
Episode 5
Da-dong's ballots are burned, but he is unwilling to accept defeat. Just at the nick of time, he covers up for Lei Ting.
06
Episode 6
Not being able to understand the good intentions of Da-dong, Lei Ting keeps fighting with him. A mysterious girl shows up at school.
07
Episode 7
Romantic feelings are growing between Lei Ting and Da-dong. What's-his-name discovers an unknown side of his father. Xiao-jie is staying at KO One.
08
Episode 8
Lei Ting causes an misunderstanding as she tries to stop Xiao-jie from a wrongdoing. Hoping to find the truth, Da-dong sets out to look for…
09
Episode 9
Wan-jun feels bitter as Lei Ting cares more and more about Da-dong, who receives a bizarre warning.
10
Episode 10
The identity of the "Non-existent Student President" is finally exposed! A mysterious person confronts Da-dong and knocks him out.
11
Episode 11
Class KO One is shocked when the identity of the kidnapper is exposed. Lei Ting realizes her own feelings and those of Wan-jun.
12
Episode 12
Due to a strange combination of circumstances, Lei Ting and Da-dong are trapped on an island and forced to spend a night together.
13
Episode 13
Lei Ting decides to tell Da-dong her feelings, but someone spoils the mood. A man descends from the sky and calls Da-dong's name before passing…
14
Episode 14
Lei Ting finally tells Da-dong about her feelings. Wan-jun beats up Da-dong for Lei Ting, yet Da-dong seems to have changed into a different person.
15
Episode 15
Da-dong's memory is in disarray. Ling reveals his identity to Da-dong and explains what has happened to him.
16
Episode 16
Da-dong gradually loses his memory. Class KO One prepares a surprise for Da-dong, who is determined to win the competition for the class.
17
Episode 17
Lei Ting is unhappy. Qiu Qiu is looking for a missing item, but Ling misunderstands and discovers that there is a deeper tie between them.
18
Episode 18
Everyone in KO One tries to pull out the best tricks to help Qiu Qiu pass the test. Qiu Qiu wants to lend her ring…
19
Episode 19
Lei Ting begins to see hallucinations accompanied by severe headaches. Wan-jun's house is burned, while Ling's tent is also being trespassed.
20
Episode 20
Lei Ting must confront the past that she has been reluctant to face; her past with Wan-jun also comes to light.
21
Episode 21
The sealed memory of Lei Ting is unraveled, but the truth breaks her down and drives her to tears. In order to protect her, Wan-jun…
22
Episode 22
Lei Ting reveals the secret to her classmates and reconciles with Wan-jun. The class is in danger. Luckily, the new transfer student saves the day.
23
Episode 23
Ling and Wan-jun work together to investigate Geng Lie. Wan-jun rushes to the rescue when a debt collection group forces Qiu Qiu to work off…
24
Episode 24
Wan-jun decides to break ties with Lei Ting. Geng Lie saves a girl who keeps calling him "King Arthur" despite having lost her memory.
25
Episode 25
Wu-xiong tells Geng Lie about her love for him, but it only makes his heart ache. Lei Ting shows her affection for Wan-jun, who feels…
26
Episode 26
In order to bring King Arthur back, Wu-xiong decides to look into the memory from ten years ago. The spell imposed on Lei Ting is…
27
Episode 27
Lei Ting and Wan-jun decide to face the future together. To protect the two of them, Hua Ling-long pulls a risky move.
28
Episode 28
Everyone thinks it's too much when Hua Ling-long goes after Qiu Qiu. With the raging epidemic virus, the Gold Dimension might be obliterated!
29
Episode 29
While facing off with Professor Pang, Lei Ting stumbles on an unbelievable truth. Prof. Pang goes so far as to destroy the Door of Time…
30
Episode 30
The end is near, and the virus is spiraling out of control. Professor Pang feels a strong sense of regret, but everything seems to be…
SEASON 3Season 3 - KO One Re-act
01
Episode 1
The KO List undergoes dramatic changes. Da-dong is assigned to return to class KO One to investigate, where he reunites with the teacher, Tian Xin.
02
Episode 2
Da-dong and Wan-jun are ambushed as they investigate the reason of the abnormal fighting count. Lei Ting cannot tell how she feels about Wan-jun.
03
Episode 3
Everyone is shocked when the new class teacher shows up. A letter Lei Ting receives prompts her to confront the past and face the future.
04
Episode 4
The class is on the verge of conflict as three ill-intentioned mysterious characters transfer into KO One. Someone issued Lei Ting a duel challenge.
05
Episode 5
Da-dong suddenly intervenes when Lei Ting and Gu Zhan battle against each other. The magical power of Li Yan-yan makes What's-his-name uneasy.
06
Episode 6
What's-his-name wants to win Li Yan-yan's heart, but things do not go as planned. A puzzled Da-dong has no choice but to seek help from…
07
Episode 7
Da-dong receives a critical phone call, which is hung up by Yun-han. Soon after, the cellphone suddenly disappears.
08
Episode 8
Jin Bao-san is heartbroken. Lei Ting and Da-dong accidentally discover an unknown side of What's-his-name.
09
Episode 9
Everyone in the class receives an invitation. Wan-jun becomes aware of Lei Ting's feelings. An unexpected visitor turns up at Bale High School.
10
Episode 10
Hua Ling-long tracks down the druggie, and the recording of the drug deal also comes to light. The worst devil in the history of KO…
11
Episode 11
Da-dong and Lei Ting become closer, which makes Wan-jun jealous. Zhi Ge's father discovers why he is reluctant to take his girlfriend home.
12
Episode 12
Wan-jun suddenly professes his love to Lei Ting. Jin Bao-san is hypnotized and attempts to assassinate Da-dong, but ends up injuring himself.
13
Episode 13
Da-dong adopts the experience of others in order to understand how he feels. Despite the urging of Gu Zhan, Qiu Qiu continues to fall for…
14
Episode 14
Zhi Ge discovers a talking door. Hei-long secretly sneaks into Bale High school. Gu Zhan accidentally uncovers a certain truth.
15
Episode 15
Zhi Ge starts to question the real identity of Secretary Li. Zhi Ge's father begins to look into the case, but ends up falling into…
16
Episode 16
Hei-long forces Zhi Ge to open the broadcasting room's door by holding Gu Zhan hostage. Everyone is horrified after the seal is accidentally broken.
17
Episode 17
Wan-jun shows signs of amnesia, but there is nothing Lei Ting can do. Da-dong is finally back, yet someone barges in just as he is…
18
Episode 18
Gu Zhan rushes to the hospital after being notified that his mother is critically ill. A fight ignites the internal strife between the brothers.
19
Episode 19
There is a remedy for Wan-jun's symptoms, but he will have to pay a great cost. Da-dong refuses to believe that his father has been…
20
Episode 20
Zhi Ge is taken by a mysterious figure. Gu Zhan strives to save him, yet Hei-long appears at this moment, and he seems to have…
21
Episode 21
22
Episode 22
23
Episode 23
24
Episode 24
25
Episode 25
26
Episode 26
27
Episode 27
28
Episode 28
29
Episode 29
30
Episode 30
31
Episode 31
32
Episode 32
33
Episode 33
34
Episode 34
35
Episode 35
36
Episode 36
37
Episode 37
38
Episode 38
39
Episode 39
40
Episode 40
SEASON 4Season 4 - KO One Re-member
01
Episode 1
02
Episode 2
03
Episode 3
04
Episode 4
05
Episode 5
06
Episode 6
07
Episode 7
08
Episode 8
09
Episode 9
10
Episode 10
11
Episode 11
12
Episode 12
13
Episode 13
14
Episode 14
15
Episode 15
16
Episode 16
17
Episode 17
18
Episode 18
19
Episode 19
20
Episode 20
21
Episode 21
22
Episode 22
23
Episode 23
24
Episode 24
25
Episode 25
26
Episode 26
27
Episode 27
28
Episode 28
29
Episode 29
30
Episode 30
31
Episode 31
32
Episode 32
33
Episode 33
34
Episode 34
35
Episode 35
36
Episode 36
37
Episode 37
38
Episode 38
39
Episode 39
40
Episode 40
41
Episode 41
42
Episode 42
43
Episode 43
44
Episode 44
45
Episode 45
46
Episode 46
47
Episode 47
48
Episode 48
49
Episode 49
50
Episode 50
51
Episode 51
52
Episode 52
53
Episode 53
54
Episode 54
55
Episode 55
56
Episode 56
57
Episode 57
58
Episode 58
59
Episode 59
60
Episode 60
SEASON 5Season 5 - KO One Re-call
01
Episode 1
02
Episode 2
03
Episode 3
04
Episode 4
05
Episode 5
06
Episode 6
07
Episode 7
08
Episode 8
09
Episode 9
10
Episode 10
11
Episode 11
12
Episode 12
13
Episode 13
14
Episode 14
15
Episode 15
16
Episode 16
17
Episode 17
18
Episode 18
19
Episode 19
20
Episode 20
21
Episode 21
22
Episode 22
23
Episode 23
24
Episode 24
25
Episode 25
26
Episode 26
27
Episode 27
28
Episode 28
29
Episode 29
30
Episode 30
31
Episode 31
32
Episode 32
33
Episode 33
34
Episode 34
35
Episode 35
36
Episode 36
37
Episode 37
38
Episode 38
39
Episode 39
40
Episode 40
41
Episode 41
42
Episode 42
43
Episode 43
44
Episode 44
45
Episode 45
46
Episode 46
47
Episode 47
48
Episode 48
49
Episode 49
50
Episode 50
51
Episode 51
52
Episode 52
53
Episode 53
54
Episode 54
55
Episode 55
56
Episode 56
57
Episode 57
58
Episode 58
59
Episode 59
60
Episode 60
SERIES INFO
5
Seasons
211
Episodes
60 min/ep
Per Episode
Ended
Status
NETWORKS (1)
GTV
DETAILS
FREQUENTLY ASKED QUESTIONS
What is KO One about?
Gifted with special powers, fighting skills and slick hair, the rowdy KO One navigates tough friendships and high school romance.
How many seasons does KO One have?
KO One has 5 seasons with 211 episodes total.
Who stars in KO One?
The cast of KO One includes Jiro Wang, Aaron Yan, Danson Tang, Pets Tseng, Melody Yin.
What is the rating of KO One?
KO One has a rating of 6.8 out of 10 based on 10 votes on TMDB.
Is KO One still running?
KO One has ended. The final episode aired on .
GENRES (2)
Sci-Fi & Fantasy
Comedy
