| Hei Long | |
| |
| Chinese Name | 黑龍 |
| Role | Villain |
| KO Rank | N/A |
| Gender | Male |
| Species | Muggle/Former demonic power-user |
| Aura | Green |
| Battle Level | N/A |
| Abilities | Teleportation & energy beams |
| Special abilities | Demonic powers, possession, mind control & demonic language translation |
| Weapons | Sword in the Stone |
| Status: | Hospitalized |
| Home World | The Gold Dimension |
| Alternate counterpart(s) | Ye Si Ren, Ye Si Ti (The Iron Dimension) & Sun Jian (The Silver Dimension) |
| First Appearance | Episode 14, KO One |
| Portrayed by | Jack Na (那維勲) |
Tian Hei Long (田黑龍), the final and most powerful antagonist of KO One, is the evil twin brother of Duan Chang Ren and the leader of the Martial Arts Syndicate (武力裁决所); a group that was created by him and six other people, two of which being Duan Chang Ren and Wang Tu Long.
In the initial years, he dreamed to take over the world, and that dream drove him mad. He killed most of his teammates. Duan Chang Ren managed to save himself by stripping away his own powers.
Hei Long has been trying to take over the world for the past 30 years, but has not been able to do so without Wang Ya Se's weapon: the "Sword in the Stone" (石中劍).
Encounter with the KO Ranked Fighters[]
Over the decades, Hei Long has been destroying or enslaving powerful warriors turning them into creatures called Wu Shi to build up his power. Tian Hong Guang, the legendary KO One, fell under his control for three years, while Lei Ke Si fell under his control for merely months soonafter he left the Ultimate Class.
He once aimed to eliminate Tian Xin and enslave Wang Da Dong, but failed to take both because they were safely protected by Da Dong's parents.
Ultimate Plan[]
He is in possession with the second Sword in the Stone, which can make him the lord of evil when both swords come together.
In order to fulfill his dream, he captured Da Dong's parents, Duan Chang Ren, and Ya Se's father in order to use them as leverage for Ya Se to agree to become cleansed with demonic energy and then let him absorb his powers.
In the end, with some help from the mysterious Jin Bi Ke, his plan falls apart as Da Dong, Ya Se, Xiao Yu and Lei Ke Si combine their powers to defeat him. Though he is not truly defeated, his powers were stripped away from that battle, along with everyone else's.
Later Life[]
The X-Family[]
Hei Long fell into a semi-insane state after the shocking end of KO One and was taken to an abandoned warehouse to live a quiet life. He made two appearances in The X-Family (終極一家) when Xiu visited him to ask questions that only he may be able to find answer to.
KO One Return[]
10 years later, Hei Long reappears in this series disguised as Duan Chang Ren working for Ba La Middle School Canteen. He is searching for his brother Duan Chang Ren who is assumed to be lost. He meets the Da Dong from 10 years ago who time travelled to the future. His identity was later revealed by Ling when he was asking too many questions about the Dimensional Phone. He later found his brother who has made a pact with the Dimensional Door and can only move on to die when Hei Long tells him he loves him. Hei Long sadly does says it to him and Duan Chang Ren dies in front of Lei Ting and the rest.
KO One React[]
This series is also 10 years after the events of KO One but follows a different story compared to KO One Return. Hei Long first appeared in this series disguised as Duan Chang Ren and getting him red handed. He is making deals with the main antagonist, Ye Si Ti to invade the class of KO One to defeat them and let Si Ti control them and make them his WuShi. He convinced Zhi Ge to open the Worm Hole and fought with Zhi Ge, Gu Zhan and the rest for a while until Zhong Wan Jun took a big hit from the Worm Hole before Zhi Ge sealed it up. Gradually, Wan Jun was turning into a Wushi, losing his memories and control of his own body. Hei Long saw this opportunity to take control of Wan Jun after he revealed his powers as KO One. This was later stopped by Da Dong, Dong Cheng Wei, Lei Ting and the rest by a melody to remove Wan Jun's demonic powers. Duan Chang Ren later convinces Hei Long to stop doing so and Hei Long ended up helping Lei Ting and the rest indirectly by stalling them so they wont fight Ye Si Ti and even gave them Hell Vision pills to help increase battle points if necessary, only to be rejected by Lei Ting and the rest.
KO One Remember[]
He first met Wang Mary in this series and they slowly fell in love with each other. Zhi Shui showed him his true identity as Deng Long and they worked together to stop Du Gu Lang. He pretended to be kidnapped by Bass to speak to Du Gu Lang and agrees to help him with his plan, even helping him to kidnap Zhi Ge. After Deng Long told him that Du Gu Lang would not share his success with him, he helped the ultimate class defeat Du Gu Lang, even griefing for his death.
KO One Recall[]
He first appeared in this series with Wang Mary in a cafe where he received the same letter from an unknown person as Duan Chang Ren and Deng Long. He was the only one who did not open the letter and did not get stunned. He went to see Duan Chang Ren and ran into Wang Ya Se, both were ready to fight only to be stopped by Duan Chang Ren.
When they discovered that one of the founders of the Martial Arts Syndicate was missing, Hong Long, Deng Long and Hei Long went to the address listed on the letter. Hong Long and Deng Long were pushed into the building by Hei Long and came back out after but Hei Long has been kidnapped by an unknown person.
Relationships[]
Duan Chang Ren[]
As twin brothers, they have opposite personalities, one very good and one very evil. Hei Long is very evil but does not hurt his brother nor allow anyone to do so. Hei Long even saved his brother a few times.
Love Life[]
Wang Mary[]
In KO One Remember, they started hating each other because of their profession. In time, they developed feelings for one another when Hei Long saved her from a deadly blast from the enemy causing him to be captured.
Specialty[]
Powers[]
Hei Long's powers are dark and more powerful than most power-users.
He can move around the realms between darkness and the human world and inhabit one's body at will.
Weapon[]
Hei Long's only known weapon is the second Sword in the Stone.
Nicknames[]
Da Dong addresses him "Big Black Snake" (大黑蛇).
Alternate Counterparts[]
Ye Si Ren
The Iron Dimension[]
Like his twin brother, Hei Long has an alternate counterpart in the Iron Dimension named Ye Si Ren.
Unlike Hei Long, he is born with dark powers and gave them up after he decided to inhabit a normal life.
The Silver Dimension[]
His other alternate counterpart is a resident of the Silver Dimension named Sun Jian, who runs Jiang Dong High School as its headmaster.
It is later revealed that he indeed had an alternate counterpart named Sun Jian in the Silver Dimension, but he was killed seventeen years ago.