On a stormy night, Senbei Norimaki is in the middle of creating an attractive teenage maid android to serve him, but lightning hits his house, causing his machines to malfunction and insteads creates a weird, short, near-sighted girl named Arale. / Arale starts her first day of school while Senbei meets her teacher, Miss Yamabuki, whom he falls in love with. At school, the kids find out about Arale's strength and everybody wants her to join their clubs.

Senbei, Arale, and her friends go to the age of the dinosaurs by the Time Slipper which Senbei invented. But once they arrive in the age of the dinosaurs, they land it inside a dinosaur’s mouth!

Arale Norimaki comes back from school while Senbei is playing with Gatchan. Then she says that other girls in the school were surprised when she went to swimming pool because she had a body part missing that other girls have. Then, Senbei complains about television that does not show 'body part'. So he makes a pair of glasses that has ability to see through peoples clothes. /

Senbei invents “the Real Thing Machine”! If Senbei puts a picture of “something” into this machine it will change it into the real thing. So Arale puts in a comic book of “Dragon Ball”… /

Arale wants to be bigger so she eats all of her school lunch even though she is a robot! But later, she starts having a stomachache so Senbei checks her body. /

Two aliens, King Nikochan and his servant come to the Earth for conquest. But before they land it, Arale and Gatchan jump in to their spaceship! / Gatchan eats King Nikochan’s spaceship, so they cannot go back to their planet anymore!

Arale finds 500 yen on the street, so she brings it to a police station. Once she hands it to the police, the police tell her she is a good girl! She gets so excited so she starts picking up everything and bringing it to the police! /

Akane comes up with new prank! She decides to pretend to be Ms. Midori to surprise Senbei… / Arale sees Akane’s bra for the first time, and she starts wanting to have one too!

Suppaman thinks he is a super hero, but actually he is a troublemaker! Since no one thinks he is a hero, he tries to attack everybody. / Arale and Gatchan go to the world of “the Peach Boy” by the Storybook Machine!

Kinoko Salad meets Arale and Gatchan at a park, so she decides to play with them! / Senbei always gets injured by Arale, because she has super wild powers. So, he decides to lower her power level…

Senbei find out how to make “Love Potion X” from his father’s video tape. He needs King UNMOH’s tear to make the Love Potion X, so he decides to go to the Wonder Island to get the tear! / Senbei find out how to make “Love Potion X” from his father’s video tape. He needs King UNMOH’s tear to make the Love Potion X, so he decides to go to the Wonder Island to get the tear!

One night, an cricket leaps into Arale’s mouth! The next morning, she becomes a totally different girl! / Senbei invents a transformation gun. Once Arale learns how to use the gun, she transforms a cockroach and a frog into Senbei!

Bancho falls in love with Arale. They decide to have a date together, but it went so bad!! / Arale and her friends go to a safari park called Wild Land. They get on a jeep to see the wild animals, but the jeep breaks in the middle of the jungle!

All of a sudden a monster shows up in Penguin Village!! Everybody panics because even the police officers cannot defeat him! To save the village, Koita Oujyou transform into Kintaman to attack the monster! / All of a sudden a monster shows up in Penguin Village!! Everybody panics because even the police officers cannot defeat him! To save the village, Koita Oujyou transform into Kintaman to attack the monster!

A fox called Donbe love to scare humans. One day, he decides to scare Arale but instead of scaring her he gets scare by her… / Senbei installs a small camera into Arale without telling her. The camera he attaches to her shows whatever she sees!

Arale is going to have a health examination tomorrow. To hide her real identity, Senbei decides to record a heartbeat. / Senbei is fed up with eating cup noodles everyday, so he invents a robot Ohcha-boy, which will cook and clean the house!

Akane decides to pull a trick on her dad, Senbei, and Kurikinton. She gives them a fake invitation for parents’ day to embarrass them / Pisuke falls in love with a girl name Hiyoko-chan who is taller than him.

Senbei decides to go to outer space for his date with Midori, but Arale and Gatchan also come with him…. When they land on a planet, a monster takes Midori away! So, he tries to defeat the monster with his Pon poko Gun! / Senbei decides to go to outer space for his date with Midori, but Arale and Gatchan also come with him…. When they land on a planet, a monster takes Midori away! So, he tries to defeat the monster with his Pon poko Gun!

Arale and Gatchan find a cute puppy. They named the puppy “Poo”, and all of a sudden the dog starts talking! / Two aliens arrive on Earth to find their kid. Once they see Gatchan and Poo playing, they finally find their kid!

A tiny devil, Chivil, comes to Penguin Village to take a human soul. He tries to take Gatchan’s soul but he realizes Gatchan is not a human…. Now he decides to take Akane’s soul, but Arale is next to her!!

A super transfer student, Hashimoto, transfers from City Island. All of his classmates never have seen people from city so they are so excited. / Senbei promises to take Arale and Gatchan to the amusement park...on the same day Midori offers him tickets to a movie. To solve this problem, Senbei invents Copy-kun to duplicate himself. The problem is, Copy-kun duplicated Senbei’s personality as well.

On a rainy day, all of a sudden Midori collapses on the street. She becomes hospitalized for an unknown reason. The Doctor tells Senbei that it is too late to save her, so Senbei decides to become tiny to go into her body to cure her.

Once Senbei hears Midori is coming to his house, he decides to make a rejuvenating drug to make him look young. Once he drinks the drug he becomes way too young!! / Arale and Gatchan join a biker gang, but actually they are milkmen!!

The Vampire Dranpire: The Great Uproar Over Love Blood Donations

There is a guy named Dr. Monster. He doesn’t have enough money to buy a Monster Dictionary, so he decides to kidnap Arale to get some money from Senbei!!