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Characters

Ueki Kousuke - Ueki Kousuke is the main character in the series. He is in Class 1-C at Hinokuni Junior High School. Ueki's ability was given by "King of the Celestial World" Candidate Kobayashi, who is also Ueki's homeroom teacher. His power is to turn garbage into trees and his level 2 power is to reverse the power of his enemy. Ueki is a genuinely kind person who is always trying to help people. Ueki is actually a heavenly being sent to Earth by his father in order to take part in this tournament. Being a heavenly being allows him to use 10 powers beyond his tree-making skills, that he eventually learns to use effectively in combination attacks. Nearer to the end of the series, Ueki finds out that he has come to rely on his treasures too much which is why his power had not shifted to level 2 yet. In his battle in the 3rd round of the tournament, he learns to use his tree powers more effectively and as a result, learns his level 2.

Mori Ai - Mori Ai is one of Ueki's classmates at Hinokuni Junior High School. She discovers his power early on, coming to a rather unusualconclusion and at first believing him to be an alien. Upon learning of the competitionUeki is in, she decides to back him up, to keep him from losing all his talents and disappearing because ofit. She is strict with Ueki at times, especially when he looks like he is about to do something rash. Later on in the series, she was given an ability. The abilty was given by the King of the Celestial World Candidate, Wanko (Inumaru). However, her power's condition is that her opponent must perform a goody-two-shoes pose (raising the right leg backwards while putting both of the fists close to the mouth region) The food she cooks tends to look rather odd and off-putting (usually with squirming octopus tentacles), but it still tastes good.

Sano Seiichiro - Sano can change towels into steel by holding his breath, however as of late it now works as if it where voice activated, no longer does it show Sano holding his breath at all but rather giving out commands to the towels. Sano, a 9th grader at Inaho Junior High School, was known as the Genius of Robert's Ten while he was part of it. But he had joined because the leader of Robert's Ten (Karlpaccho) had placed a Death Pentagon on Sano's "King of the Celestial World" Candidate Inumaru that would kill him by removing all his blood unless he listened to Robert. Sano can be creative with his power, creating shields, springboards (spring) and even boomerangs which he calls "boomerang cutter". He has a burn over his left eye which was caused during an accident with a hot spring. Still, he does love those hot springs and hopes to get the blank talent to obtain the talent of discovery in order to find a hot spring of his own. His Level 2 makes his steel towels into powerful magnets. Sano seems to possess a ridiculous amount of his necessary towels, pulling them out of his robe in rapid succession. Sano is seen teaming up with Rinko in various episodes.

Rinko Jerrard - Originally part of Robert's 10, Rinko Gerrard is probably the coolest character in the show. Rinko has the ability to turn beads into bombs, which she uses effectively in her bead cannon, Rinko rocket, and bead glove. Rinko is very rich. When Rinko was younger, she thought she had lots of friends, but it turned out that they only wanted to hang out with her because she had lots of money. When her friends leave her, Robert invites her into his 10. Rinko develops a crush on Robert but eventually, Ueki convinces her that Robert is no good. It isn't later on in the series until Robert tells Rinko that she was stupid for ever thinking such a thing. Rinko has an unnatural weakness for all cute things, which is why she tried to change Tenko's name to Tenki. If she is insulted in any way, a beast seems to take over her soul temporarily and release its wrath onto whoever is in a certain radius of her person. At the end of the manga, she confesses her true feelings towards Robert but Roberts ends up insulting her. He is soon after hospitalized.

Hideyoshi Soya- Hideyoshi's ability is to turn voices into portraits can make voices come out of them. Basically, he can turn any person's voice into a picture that can project that person's voice. The condition is that he needs to bend his fingers or toes. He is a power user that Ueki and Mori meet. He is prone to deception, using various novelty gags and tricks in a fight such as soy sauce bomber. He uses his ability to prank others as well. He looks out for a group of kids at a place called the Sun House. His first King of the Celestial World Candidate, Nero, was a kind heavenly being that did not want to become the King of the Celestial World; he simply wanted to help out humans which he did at the Sun House. Hideyoshi offered to become gifted so that Nero could stay longer on Earth. Unfortunately, he helped Hideyoshi during a fight and was sent to Hell. Then, Hideyoshi received a new King of the Celestial World Candidate, Zack, whom he hates for turning out to be a jerk and wanting him to join forces with a nasty bunch of power users. He agrees to help Ueki when he hears that they can save Nero. Although sometimes cowardly and weak when Hideyoshi performs his sneak attacks in conjunction with his power he can be a formidable foe. In one occasion, he combined Sano's power with his to make a shock wave made out of sound. In addition, his ability to use his opponent voices as well work with his tricks making it easier to deceive his foes.

Koboyashi - Kobayashi, nicknamed as Mr. K (or Kobasen), is a teacher at Hinokuni Junior High School. Mr. K is also a King of the Celestial World Candidate who gives Ueki his power. He is Ueki's homeroom teacher and had been carefully studying him in order to judge his worth for the tournament. He has a very strong sense of justice, actually inspiring Ueki long ago when he saved him from falling off a building. He was sent to Hell for saving (and thus helping) Ueki in his first fight against Robert Haydn. It is mentioned in the show that Kobayashi's least favourite food is pickled crickets. Koboyashi is seen mostly talking with his prisonmate, Wanko, in hell.

Inumaru - The King of the Celestial World Candidate who gave Sano his powers. The two officially paired up for the tournament when Sano risked his life to save a child from a burning building, and Inumaru (or Wanko) did likewise, despite Sano threatening that he would not join if Inumaru did so. Inumaru had said that he could not ignore people in danger regardless of the reason, which prompted Sano to join, and to think of Inumaru as his friend rather than his Candidate. In Dogura Mansion, after being told that Sano joined Robert's Ten to save him from the Death Pentagon, he gave Mori a power, thus breaking the most important rule of the tournament, in order to force himself to go to Hell so that the others would be saved from certain circumstances that threatened the rest of the Ueki Team.

Tenko - Tenko is a large tailess yellow fox-like creature with a duiker-like horns on his head, ten blue beady eyes with the main pair three to six times larger than the other pairs, black bat-like wings, brown stripes on his limbs and with no visible ears that helps Ueki awaken his celestial powers. He can also change his shape to fit onto Ueki's wrist like an arm protector used by goaltenders in ice hockey. To give him advice, he seems to be able to communicate with Ueki telepathicaly. He is a Heavenly Beast that is something of a mutation among his kind (he is born as an ancient version of Heavenly Beast, which is a ferocious-looking Godzilla-sized fox-like creature instead of an adorable cat-sized genetically-engineered house pet). He was treated very poorly by Heavenly Beings and was eventually sent to a prison in hel where he stayed until he escaped. Ueki was the first to actually treat him with some kindness and respect. He is able to detect the power level of Heavenly Beings (his eyes lights up and changes colour to red depending on which level the Heavenly Being is on) and because of his mutations, he has a bigger version of what is called the "awakening organ" that can awaken the hidden powers within Ueki. Unfortunately, He can only use it to train Heavenly Beings up to 7 levels without dying for every Heavenly Being. This means that he can still use it to another Heavenly Being. Tenko has an ability to spit out a large, roundish bunny creature that enveloped Ueki and heals him within 12 hours, kind of like the regeneration tanks from Dragonball Z. He acts fairly harsh with Ueki at times, but he is happy to have found someone who actually needs him. He also is very useful at giving advice in a fight (he is not allowed to fight or he will be sent to Hell); in the jump rope fight against Karlpaccho, he told Ueki when the rope was coming and against the Marilyn team he warns Ueki about their location in the smoke.

Robert Haydn - Robert Haydn is widely considered the strongest of all the ones chosen to participate in the tournament. Robert has the ability to boost his sacred treasures in any way he desires, but loses one year off his life for it.Robert's level 2 is to change the effect of gravity, which he uses in the shape of bubbles. For example, if he wanted un unstoppable projectile, or an unbreakable wall, he could idealize it, and it would become a reality, at the cost of one year. However, once he has created an ideal, he can use it as many times as he wants without losing any more of his life. That is also why the reason he formed Robert's Ten. They act as his brawn, doing the fighting for him in order to save those precious years. He is a fairly nasty character, not caring who he harms and how badly they are harmed. Like Ueki, he is a Heavenly Being with more power than the gift given by his King of the Celestial World Candidate. But unlike Ueki, however, Robert has been training in his power for quite a long time. Robert has an unfortunate past in which he was treated as a monster by the people of his town. After being betrayed by his friends, he starts to hate humanity and destroyed the entire village where he lived. At the end of the series, he becomes a nice person like his childhood self, having been touched by Ueki and his friends.

Margarette - He is Robert's father and the King of the Celestial World Candidate who gave him his power. Margarette sent his own son to Earth so that he could choose him for the tournament. Not above sneaky tactics to ensure his son's victory. His body was possessed by a Hellion with the intention of taking over Heaven. He later puts Ueki in his awakening organ (It turns out that he also absorbed Heavenly Beasts similar to Tenko), and advances Ueki to his 9 and 10 star treasures.

Anon - Anon is from a race known as the Hellions, who come from the Protector clan. Anon can swallow and absorb people within himself, thus making their bodies his, as well as gaining whatever abilities they have such as Robert's power to make the ideal thing and his sacred treasures. That being said, Anon absorbs Robert into his body and takes his shape in the tournament. With a surprisingly humble nature, he has a hard time understanding humans and tends to experiment on them with reckless curiosity. Although it appears that Margarette is his father it is actually a Hellion who swallowed Margarette using his appearance. Later in the series, he swallows King of the Celestial World and changes up the rules of round 4. He first told Ueki that his dream is to destroy everything, but in fact, his real dream is to have someone who can beat him. This picture here is Anon's true form.