The fate of the world rests on Ueki, an average junior high student. Average until he gains the power to change trash into trees. Granted to him by the enigmatic Mr K., Ueki’s strange power forces him to participate in the 100-fighter "Battle of Supernatural Powers." If Ueki wins the tournament, Mr. K will become the new King of the Celestial World while Ueki will receive the "Talent of Blank", allowing him to choose any power he desires. However, if Ueki gets too many penalties during the game, he will disappear!
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Kosuke Ueki's Law of Righteousness | 2005-04-04 | 30 min |
| Season 1 | Episode 2 | The Law of the Battle Commencement! | 2005-04-11 | 30 min |
| Season 1 | Episode 3 | The Law of Talent | 2005-04-18 | 30 min |
| Season 1 | Episode 4 | The Law of Li Ho, the Man of Physical Skills! | 2005-04-25 | 30 min |
| Season 1 | Episode 5 | The Strongest Ability-Holder, Law of Robert Haydn | 2005-05-02 | 30 min |
| Season 1 | Episode 6 | The Law of Goodbyes | 2005-05-09 | 30 min |
| Season 1 | Episode 7 | The Law of Mr. K | 2005-05-16 | 30 min |
| Season 1 | Episode 8 | Fair and Square! The Law of Onimon! | 2005-05-23 | 30 min |
| Season 1 | Episode 9 | The Law of Onimon's Training | 2005-05-30 | 30 min |
| Season 1 | Episode 10 | The Law of Justice That Never Comes | 2005-06-06 | 30 min |
| Season 1 | Episode 11 | The Law of Robert's Ten | 2005-06-13 | 30 min |
| Season 1 | Episode 12 | The Law of Heavenly Beings | 2005-06-20 | 30 min |
| Season 1 | Episode 13 | The Law of the Heavenly Beast | 2005-06-27 | 30 min |
| Season 1 | Episode 14 | The Law of the Awakening Organ | 2005-07-04 | 30 min |
| Season 1 | Episode 15 | The Law of Rinko | 2005-07-11 | 30 min |
| Season 1 | Episode 16 | The Law of Neo | 2005-07-18 | 30 min |
| Season 1 | Episode 17 | The Law of the Two Powers | 2005-07-25 | 30 min |
| Season 1 | Episode 18 | Tremble! The Law of Dogura Mansion | 2005-08-01 | 30 min |
| Season 1 | Episode 19 | The Law of Cossack Dance | 2005-08-08 | 30 min |
| Season 1 | Episode 20 | The Law of Cat and Mouse | 2005-08-15 | 30 min |
| Season 1 | Episode 21 | The Law of Seiichirou Sano | 2005-08-22 | 30 min |
| Season 1 | Episode 22 | The Law of Inumaru | 2005-08-29 | 30 min |
| Season 1 | Episode 23 | The Law of Ueki vs. The Ten | 2005-09-05 | 30 min |
| Season 1 | Episode 24 | The Law of Young Robert Haydn | 2005-09-12 | 30 min |
| Season 1 | Episode 25 | Resurrection! The Law of Mr. K | 2005-09-19 | 30 min |
| Season 1 | Episode 26 | Terror! The Law of Hanon | 2005-09-26 | 30 min |
| Season 1 | Episode 27 | The Law of Hideyoshi | 2005-10-03 | 30 min |
| Season 1 | Episode 28 | The Law of the Sun House | 2005-10-10 | 30 min |
| Season 1 | Episode 29 | Don't Die! The Law of Tenko | 2005-10-17 | 30 min |
| Season 1 | Episode 30 | The Law of the Third Battle | 2005-10-24 | 30 min |
| Season 1 | Episode 31 | The Law of the Strongest Tag | 2005-10-31 | 30 min |
| Season 1 | Episode 32 | The Law of Real Strength! | 2005-11-07 | 30 min |
| Season 1 | Episode 33 | Assault! The Law of Ueki vs. Li Ho | 2005-11-14 | 30 min |
| Season 1 | Episode 34 | The Law of Team Marilyn | 2005-11-21 | 30 min |
| Season 1 | Episode 35 | The Law of "You Tricked Me!" | 2005-11-28 | 30 min |
| Season 1 | Episode 36 | The Law of Proof of Friendship | 2005-12-05 | 30 min |
| Season 1 | Episode 37 | The Law of the Sacred Treasure's Weak Spots | 2005-12-05 | 30 min |
| Season 1 | Episode 38 | The Law of Sano's Awakening!! | 2005-12-19 | 30 min |
| Season 1 | Episode 39 | The Law of the Sealed Heart | 2005-12-26 | 30 min |
| Season 1 | Episode 40 | The Law of Wonderful | 2006-01-02 | 30 min |
| Season 1 | Episode 41 | The Law of the Real Thing and the Impersonator | 2006-01-09 | 30 min |
| Season 1 | Episode 42 | The Law of Team Ballow | 2006-01-16 | 30 min |
| Season 1 | Episode 43 | The Law of the Goodie-Two-Shoes Pose | 2006-01-23 | 30 min |
| Season 1 | Episode 44 | Law of Ueki, Level 2! | 2006-01-30 | 30 min |
| Season 1 | Episode 45 | Law of the Attack from the Past | 2006-02-06 | 30 min |
| Season 1 | Episode 46 | The Law of God, the Girl, and the Future | 2006-02-20 | 30 min |
| Season 1 | Episode 47 | The Law of Hanon Who Became God | 2006-02-27 | 30 min |
| Season 1 | Episode 48 | The Law of the Fourth Round | 2006-03-06 | 30 min |
| Season 1 | Episode 49 | Law of the Ten Stars | 2006-03-13 | 30 min |
| Season 1 | Episode 50 | The Law of Ueki vs. Hanon | 2006-03-20 | 30 min |
| Season 1 | Episode 51 | The Law of Blank Zai | 2006-03-27 | 30 min |
| Art | Tsubasa Fukuchi | Original Series Design |
| Writing | Tsubasa Fukuchi | Comic Book |
| Directing | Hiroshi Watanabe | Series Director |
| Visual Effects | Shinobu Tagashira | Character Designer |
| Sound | Akifumi Tada | Original Music Composer |
| Sound | Hitomi Shimatani | Theme Song Performance |
| Writing | Toshifumi Kawase | Series Composition |
| Sound | Aiko Kayō | Theme Song Performance |
| Sound | Kumi Koda | Theme Song Performance |
| Sound | Romi Park | Theme Song Performance |
| Art | Tomochi Kosaka | Prop Designer |
| Art | Eiji Iwase | Art Direction |
| Editing | Masahiro Matsumura | Editor |
| Camera | Seiichi Morishita | Director of Photography |
| Production | Nobumitsu Urasaki | Producer |
| Sound | Fumiko Harada | Sound Director |
| Visual Effects | Kumiko Horikoshi | Animation Director |
| Camera | Teruo Abe | Director of Photography |
| Visual Effects | Shinji Matsumoto | Color Designer |
| Sound | Fumiko Harada | Music Director |
| Sound | Naoto Kobayashi | Sound Effects |
| Sound | Shoji Hata | Recording Supervision |
| Production | Megumi Nagayama | Production Manager |
