The main character is a scientific genius boy named Kiteretsu, who has built a companion robot named Korosuke. He frequently travels in time with his friends and Korosuke in the time machine he built. Miyoko is a girl in his neighborhood who is basically his girlfriend. Tongari is his rival, who happen to share some similar traits of Honekawa Suneo. Buta Gorilla is a typical neighborhood bully, who also share similar traits of Gian except that he often antagonizes Korosuke (though they are in grade school).
Created by Toshiko Fujita, Mami Koyama, Chieko Honda
Searching for buried treasures! / My Own Invention that got Big Treasure!E1 · 25 min
Eiichi dreams of his ancestor, Master Kiteretsu, who asks if the Encyclopedia is truly useful. Waking up, Eiichi rethinks how he uses inventions with Korosuke and what they mean for everyday life.
A Reinvention I made for Benzo / Korosuke becomes a Director!E2 · 25 min
Ben-chan, the neighbor, is crushed after being rejected. To cheer him up, Eiichi makes an invention meant to attract romance. But helping love along proves trickier than expected.
Kiteretsu's Moon adventureE3 · 25 min
Inspired by Master Kiteretsu's sketches of the moon, Eiichi attempts what even his ancestor couldn't: a trip to the lunar surface. With a homemade rocket and gear, he launches into a risky adventure.
Troubled in the dark / A Magic Costume Saved EveryoneE4 · 25 min
A landslide traps Eiichi and friends inside a dark cave. As the air runs thin, fear rises. Eiichi searches for a way out, wishing he had a wall-passing invention to save everyone.
Goblin Secret passageE5 · 25 min
Eiichi and Korosuke use the Tengu Tunnel, which bends space to travel anywhere instantly, for an easy hike. Butagorilla's jealousy over their barbecue sends him into the forest, and the outing goes off course.
Look Look! The Warrior is Here / Ini-Mini-Mynih! Everything is Tiny!E6 · 25 min
A mechanical warrior stored in the shed suddenly starts rampaging around town. Someone has taken its controller! Eiichi and Korosuke investigate who did it and try to stop the chaos before anyone gets hurt.
I Will Play House with Miyoko / Just Forget It!E7 · 25 min
With the "Trial House," pretend play feels real. Dreaming of the future, Eiichi uses it to experience an ideal home life with Miyo-chan. But acting out fantasies brings surprises-and complications.
Let’s Make a Movie / Big Fun in the Small City!E8 · 23 min
Eiichi plans a special-effects movie using a "zero-gravity" setup, casting Korosuke as the star and roping in Miyo-chan and Butagorilla. Once filming begins, the set turns into pure chaos.
Camera of memories / Showdown! Korosuke against KawarabankozouE9 · 25 min
Mysterious thefts strike the neighborhood. Eiichi and Korosuke use a camera that shows the past to retrace events and catch the culprit. The clues are there-but the truth is tricky.
Korosuke and the baby dinosaur!E10 · 25 min
TV reports claim a baby dinosaur has appeared off the coast of Kochi. Eiichi notices the silhouette matches a "dinosaur boat" invention he left behind. He and Korosuke hurry to recover it before panic spreads.
Human Duplication Gun / Korosuke Goes to SchoolE11 · 25 min
A friendly older neighbor visits, but Eiichi has plans with Miyo-chan. Torn between promises, he considers using a duplication machine to be in two places at once-only to learn that copies bring complications.
Machine which can stop time / Playing with waterE12 · 25 min
Ben pushes himself to study nonstop, hoping to change his life. Worried he's too stressed, Eiichi builds an invisibility machine so Ben can take a break. But disappearing from problems isn't a real solution.
Sweet home above cloudsE13 · 25 min
Crime catcher robot / Ghost LampE14 · 25 min
A Little Bodyguard / Giant Bubble DomeE15 · 25 min
Father's day meetingE16 · 25 min
Tongari becomes invisibleE17 · 25 min
We will meet EdisonE18 · 25 min
The Heat has got Everyone Soaked / Peter-Pater-Jimer-Jamer-Trip-Grip-Rip!E19 · 25 min
Korosuke does Everything to Become Stronger!E20 · 25 min
Changing Marathon TimeE21 · 25 min
Sports Meet, Who Will Become MVPE22 · 25 min
Butagorira's Vegetable Party / Animal Voice TranslatorE23 · 25 min
Lantern Makes Study Easy / Robots Have Feelings TooE24 · 25 min
Laughing HelmetE25 · 25 min
Everyone Will Obey MeE26 · 25 min
Kiteretsu Will Do SomersaultE27 · 25 min
Wicker Cloth Box / Korosuke's Matchmaking With a DogE28 · 25 min
Searching For Hot Springs Deep in the EarthE29 · 25 min
The story of Korosuke and Chibigorira's friendshipE30 · 25 min
Otohime Loves KiteretsuE31 · 25 min
Otohime Loves KiteretsuE32 · 25 min
Santa Claus is RealE33 · 25 min
After 10 years of flower bridegroom divination Miyo-chan coming-of-age ceremonyE34 · 25 min
Mystery in the Snow CountryE35 · 25 min
Skating special training of Butagorira / Polar bear swim tournamentE36 · 25 min
New annual must-see! Girl with red school bagE37 · 25 min
Marry a prince!? Miyoko princessE38 · 25 min
U-turn to the north country in HokutoseiE39 · 25 min
Become assistant roller smart ass!?E40 · 25 min
Bride elect of the roller assistant WakasamaE41 · 25 min
Welcome to the land of invitation from south of dinosaur!E42 · 25 min
Butagorira longing girl older?E43 · 25 min
Shot in ultra wandering maze! ?E44 · 25 min
Find the butterfly illusion of get-rich-quickE45 · 25 min
Echo vegetables to meet to refer to these signals as bits,E46 · 25 min
Maca mysterious? Otohime-sama Grateful CraneE47 · 25 min
Maca mysterious? Otohime-sama Grateful CraneE48 · 25 min
To be home free! Class officer in the limelight lightE49 · 25 min
Lie! The vegetables that hate Butagorira is!?E50 · 25 min
Adventure of underground found Kinkira JinshanE51 · 25 min
Popular! 5 years three sets swan teacherE52 · 25 min
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