The story starts out with the Battle of the Supernatural Powers, a tournament to decide who will be the next King of the Celestial World (rendered as (天界人, Kami?) in the Japanese version).
Each candidate (100 in total) is required to choose a junior high school student to act as their fighter. Each student is given a unique power and the winning King of the Celestial World Candidate will become King of the Celestial World and the winning student will receive the Blank Talent, a talent that can be anything they choose.
While this leads many students to thoughts of greed and selfishness,
Kosuke Ueki has decided to take it upon himself to win this tournament to keep that power away from those that would abuse such a gift.
Initially, fights in the tournament consist of a battle between two power users - one wins by knocking the other opponent out.
When a knock-out is obtained, the loser will lose their power and the winner will gain a talent (才, Zai?), which is a talent of some sort (e.g. "talent of running," "talent of studying," and so on). A power user who has lost a fight and their power is labeled "retired."
The rules for the combatants of the tournament revolve around the talents:
- Power users are not allowed to use their powers against non-power users, or they lose one talent for each hit.
- If the power user loses all their talents, then they will disappear.
- Everytime a power user knocks out another power user, the one who knocks out the other will gain another talent, senseless or not.
- If, for any reason, both contestants become unconscious at the same time, the round is a draw: no talents will be gained, and no powers are lost. The contestants must be knocked out within 5 seconds of each other, or the last contestant wins.
There are also rules which apply to the King of the Celestial World Candidates. The punishment for breaking them is that the King of the Celestial World Candidate is sent to Hell.
- King of the Celestial World Candidates are not allowed to interfere with their power user's fight. This means that they are not allowed to provide their power users with more supplies to use their power (this may only apply to during a fight), or even save them from dying.
- King of the Celestial World Candidates are only allowed to grant a power to one individual. However, it is possible for two King of the Celestial World Candidates to give a power each to one person; if found out, though, it will lead to a disqualification of both King of the Celestial World Candidates.
Near the end of the tournament, power users are allowed to form groups of five for "battle royale"-style fighting. Knock-outs during this stage do not result in losing powers. Each team is given a penalty if it loses, such as having all of the members die or losing their hair in addition to losing their powers.
To decide who receives the Blank Talent among the winning team, a device is used to measure the growth in power that each participant has shown from the beginning to the end of the tournament. To decide who is to become King of the Celestial World, the winning team votes which of the King of the Celestial World Candidates is given that honor.
Level 2 powers may be obtained by the power users. The requirements are a total mastery of their original power and the powerful desire to become stronger.
All heavenly beings have the potential to master a total of ten attacks which correspond with different levels of their growth. These attacks are called Jingi, or "sacred treasures". Ueki manifests these abilities through his talent for tree growth. A heavenly being's sacred treasures with no special powers will take the form of stone (except Barou).
- Ueki's Level 2 Heavenly Powers allowed him to use more than one Jingi at a time, rather than limiting the use of sacred weapons to one at a time as opposed to other Heavenly Beings (His actual level 2 power is to turn his opponents B back again into A).
Robert's level 2 for his Jingi is the ability to change the gravity of any object his Jingi touches. Only Ueki and Robert have level 2 Jingis in the Battle Game.
- That as the number of stars in a weapon increase, so does it's capability to damage.
- If a heavenly being is a power-user (having received a power from a God Candidate), he can merge his power with his sacred treasures. In the case of Ueki, his sacred treasures are massive and are made of trees.
- In the Battle Game there are only 6 heavenly beings, Ueki, Robert, Kilnorton, Diegostar, Barou and Ban Dicoot.
List of sacred treasures
The 1-star sacred treasure, gained through consciousness/realization of the fact that the user is a heavenly being. A large cannon grows out from the user's arm and fires a large ball at the opponent.
For Ueki, a large cannon grows out from a tree and fires a large ball of wooden strands at the opponent. Often used in conjunction with Pick by Ueki. First seen in the battle between Ueki and Alessio Iuliano.
The 2-star treasure, gained through perseverance. A giant arm grows out of the ground to protect the user from attacks. It can also be used offensively by striking at enemies. First seen when Ueki was defending himself from Tenko.
The 3-star treasure gained through firmness. A gigantic knife grows from the arm of the user. Ueki's Ranma grows out from a tree to strike the opponent. First seen in the battle where Ueki appeared fully healed, he used it to retire Oni. The shape of the blade changes from user to user.
The 4-star treasure gained through body and strength. A big mouth appears to chomp the opponent. Can jump out of the ground towards the opponent. Ueki's Masshu is a big mouth with tree legs that comes from the ground to chomp the opponent. First seen in the 2nd battle between Ueki and Don.
Note: Masshu can be used to defend against attacks as well by chomping on Kurogane, Ranma and Pick.
The 5-star treasure, gained through centralization. A large column shoots out very fast from the arm of the user towards the opponent. Ueki's Pick grows from a tree and has yellow and black stripes.
Most of the heavenly beings picks are just thick columns with differing matter and markings on them but Robert Haydn's pick is in the shape of a corkscrew pointed at the end and Barou's pick is also pointed at the end. It can be pointed downward to propel the user upwards. First seen in the battle between Ueki and Yunpao in the Dogura Mansion.
The 6-star treasure, gained through anticipation. A pair of rollerblade-like attachments show up on the user's feet allowing him rapid movement on the ground. The user cannot jump when using these. First seen in the battle between Ueki and Karl Paccho.
The 7-star treasure, gained through speed. A grid of light appears on the ground, followed by a boxed wall that can shoot up from anywhere on the grid to capture an opponent. Any attempts to attack while inside the box are futile and can be directed back at the captured.
The opponent has half a second to react, and if he or she escapes in that time, he or she can avoid imprisonment. First seen in the battle between Ueki and Caption.
The 8-star treasure, gained through an unknown test. The appearance is that of a massive whip. It is a highly flexible weapon which can be turned in any direction desired by the user. First seen in the match between Ueki and Gitar.
The 9-star treasure, gained through balance. A pair of wings will appear on the user's back, granting him flying capabilities.
First appeared in the second opening theme of the series, although it was first used in a fight between Ueki and Anon, Seikū is also seen when Ueki saved Ai from falling. Color changes from user to user.
The 10-star sacred treasure, gained through will. Summons a creature that varies from heavenly being to heavenly being. Maoh is a formless weapon. The power of the summon is based on the desires of the fighter, which in Ueki's case was to protect his friends. Ueki's Maoh takes the form of Kobayashi and is relatively weak compared to Anon's Maoh due to his low will power. But due to an increase in Ueki's wishes to save his friends, his Maoh's strength increased and he gained control over it.
Robert's Maoh is an extremely hideous black skeletal ram and is the embodiment of his hatred for humanity. It is used by Anon after Anon absorbs Robert. Maoh can only be used only six times in 1 battle. First mentioned in the ending scenes of the battle between Robert Haydn and Ueki. First appearance in the last battle between Ueki and Anon, although it was attempted by Robert in the Dogura Mansion where he was prevented by Kobasen along with the ending of round 1.
This level is attained only by Robert Haydn, Kōsuke Ueki, God and Margarette (Robert's God Candidate).
Demi-weapon Tenso - the unknown sacred treasure that changes the geography of any place. Only Go has this power, but since Anon can absorb powers from whom he devours, he wielded it and created the pathway, where the last battle took place.
Ueki and Robert both show a preference for using Ressen and Kurogane. God prefers using Kurogane, Galiper and Raika. Ueki also seems to prefer using Raika in his battles. Due to Ueki's level 2 power, he can use Pick and Kurogane at the same time, creating a combo attack that is difficult to evade.
Margarette prefers to use Namihana, Ranma and Masshu. Most Heavenly Beings in the Battle Game use Pick alot because it is the highest damaging Jingi that most of them attain. Barou uses Kurogane and Masshu alot because of the nature of his power.
Every middle school student have talents that help them in battle or in life. You can gain or lose talents depending on your action. You gain a talent by defeating another chosen student. You will lose a talent if you use your power on a non-chosen student. If your talents becomes zero, you will vanish.
Ueki started in the series with 11 talents.
List of Talents One of Ueki's original talents. He is likable to ladies more. He loses it in first episode during a battle in the park. Upon losing it, the girls in his class want to punch him unknowingly.
Another of Ueki's original talents. He is able to understand easier making him smarter. He loses it on a while against a greedy doctor. Upon losing it, he is unable to answer a problem in class. It now takes him 100 times to study what he was able to understand once.
He is able to set the record for middle school student relay. He looses it upon hitting the coach who made fun of its one member. His speed is dropped but still manages to run quick with effort.
- Sarcasm
- Dancing
- Lottery
- Animal Charisma
- Swimming
- Dodging
- Dandyism
- Imitation
Opening themes
Ending themes - (こころの惑星～Little planets～, Kokoro no Wakusei ～Little Planets～?) by Aiko Kayo(Episodes 1-15)
- (Earthship ～宇宙船地球号～, Earthship ～Uchūusen Chikyuugou～?) by SweetS (Episodes 16-32)
- (この街では誰もがみな自分以外の何かになりたがる, Kono Machi de wa Dare Mo ga Mina Jibun Igai no Nani Ka ni Narita garu ?) by The Ivory Brothers (Episodes 33-42)
- (ボクたちにあるもの, Bokutachi ni Aru Mono?) by Romi Paku (Episodes 43-50)
- True Blue by Hitomi Shimatani (Episode 51)
