One day three intelligent children are called in by the principal and asked by Shakyamuni dwelling in his body to find missing puzzle copperplates scattered all over the world and complete the puzzle board to heighten honor of Oshaka School. The conversation, however, is overheard by the villain trio and they decide to forestall those selected youngsters. Then they happen to meet with a brilliant boy named koochan who appears handy and so they take him with them and attempt to take away puzzle copperplates from a goblin. At the same time they try to win the goblin over to their side and attack our heroes together. Being aware of the evil scheme, Koochan transforms himself into Itadakiman and fights bravely to drive the wicked trio away.
Kei Tomiyama
Narrator
Bin Shimada
サーゴ浄
Kazuya Tatekabe
トンメンタン
Tomohiro Nishimura
ハツ男
Noriko Ohara
ヤンヤン
Hitomi Oikawa
法子
Mayumi Tanaka
空作（イタダキマン）
Chika Sakamoto
竜子
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