Season 1

14‏/10‏/1981 · 22 د

Ataru Moroboshi, an unlovely flirtatious boy, has been chosen to fight an invading alien force's champion in a 10-day game of tag. If he loses the aliens will invade Earth, but if he wins, the aliens will go home. Ataru isn't at all willing to play tag until he sees the alien's champion: the beautiful Lum. A group of admirers of Lum try to summon her UFO back to Earth, using Ataru as bait, but instead they get an intergalactic taxi that takes them though subspace, and the fare for the taxi is the value of all the oil on the planet.

14‏/10‏/1981

21‏/10‏/1981 · 22 د

A peach falls from the sky, in which Lum's cousin, Ten comes out for a visit. He is capable of breathing fire and is an instant enemy to Ataru. Ten feeds alien candy to a swallow, making it grow massively in size such that it looks like a penguin. Its appearance in school is just the start of a full day of panic.

21‏/10‏/1981

28‏/10‏/1981 · 22 د

Shinobu meets upon Rei, Lum's handsome ex-fiancé, and brings him to Ataru’s house, much to the dismay of Lum. Ataru and his friends find Rei in a restaurant. His poor Japanese being mocked makes him go wild, and as he chases the boys and Lum throughout town, the chaos grows on.

28‏/10‏/1981

04‏/11‏/1981 · 22 د

Lum and Ten meet a vicious little boy on top of a flying bear, whom Ataru and Shinobu identify as Kintarō, who came from the sky and is lost. Kintarō's nanny, with Ataru's help, takes the alien children on a tour of Earth and end up in a preschool where the actual Kintarō learns the myth of the real Kintarō and thus hopes to be a role-model to the kids.

04‏/11‏/1981

18‏/11‏/1981 · 22 د

Ataru runs away from home, unable to stand the pressure of living with Lum, and bumps into a beautiful lady named Sakura, who takes him to her shrine for exorcism. Sakura becomes Tomobiki High School’s nurse, and her beauty makes all the boys deliberately injure themselves in order to go see her. But later, they get really sick, which might be connected to Ataru, who oddly enough wants to avoid her.

18‏/11‏/1981

25‏/11‏/1981 · 22 د

Lum constantly interferes with Ataru's attempts to reach Shinobu by phone. By barging into their phone conversation from her UFO, it inadvertently creates a black hole that causes aircraft to vanish. Ataru puts two mirrors together on Friday the 13th and accidentally makes a little demon appear from another dimension.

25‏/11‏/1981

02‏/12‏/1981 · 22 د

Cherry gives Ataru a magical yellow ribbon, which when tied to her horns, negate Lum's powers. But will this really allow him to be happy? After an odd loss of control of his body after dinner, Ataru finds out Lum made a voodoo doll of himself using some clay. Ataru takes advantage of the situation for revenge scheme, until it gives Lum the idea to make a Shinobu doll.

02‏/12‏/1981

09‏/12‏/1981 · 22 د

Ataru, Shinobu and Lum’s Stormtroopers wind up in Neptune through a portal discovered in Ataru’s closet where they are greeted by Lum’s friend Oyuki. While in the air, Lum, Ataru, Ten and Kintaro accidentally wind up back to the dinosaur age.

09‏/12‏/1981

16‏/12‏/1981 · 22 د

Ataru’s wish upon a star seems to come true as he is selected to awake the Karasutengu Princess Kurama by a kiss and mate with her for a night, but he is not her ideal man. Still trying to cure Ataru of his lechery, Kurama uses a weird dimensional door where Ataru faces hostile versions of the girls he loves.

16‏/12‏/1981

23‏/12‏/1981 · 22 د

Lum's Stormtroopers devise a scheme to embarrass Ataru and get Lum to dump him by setting up a fake Christmas Eve date for him.

23‏/12‏/1981

06‏/01‏/1982 · 22 د

The normal cast is put into an ancient Japanese story that takes place during the Heian period, with a special guest appearance.

06‏/01‏/1982

13‏/01‏/1982 · 22 د

Sakura invites Ataru and others at a local disco, which is a perfect setting for her boyfriend Tsubame to prove himself worthy of being her fiancée to Cherry by displaying his magic abilities that however go awry. Kurama takes Ataru back in time in hope of teaching him to be her ideal man like her father.

13‏/01‏/1982

20‏/01‏/1982 · 22 د

During a Hawaiian vacation at a beachside resort, the girls’ swimsuits are stolen. Could Cherry be the culprit? Still at the resort, Sakura, Ataru and Cherry compete in an all-you-can-eat contest.

20‏/01‏/1982

27‏/01‏/1982 · 22 د

Tomobiki High School gets a new student: Shutaro Mendo, the son of Japan's richest family. He and Ataru have a duel for presidency of the class. After a computer told Lum that her perfect matchmade partner is Shutaro instead of Ataru, she shrinks the two down and places them on a Horoscope device.

27‏/01‏/1982

03‏/02‏/1982 · 22 د

Lum takes Ataru to her home planet for the Setsubun Battle, but the game goes awry as he goes after the goddess Benten. Benten shows up for Earth's Setsubun, and a rematch ensues as Ataru angers Lum by taking advantage to play with Benten.

03‏/02‏/1982

10‏/02‏/1982 · 22 د

A new teacher, Sanjuro Kuribayashi, has been tasked with bringing order to Class 2-4, and he grows extremely hostile towards Ataru for being Lum’s fiancé. During parents' visiting day, Lum's Mother and Mrs. Mendo have an all out war against each other.

10‏/02‏/1982

24‏/02‏/1982 · 22 د

Mendo brings an antique camera to school that sends Ataru off into other worlds. Ataru strangely becomes amazingly lucky to the point that Mendo loses his popularity.

24‏/02‏/1982

03‏/03‏/1982 · 22 د

Ataru is enchanted by a doll that takes him to Ran, Lum’s childhood friend, who is not so joyful about old times when the topic of Rei comes up. Ran invites Lum and Ataru into her spaceship for a farewell party, but Lum doesn't believe she has given up on sucking Ataru's youth.

03‏/03‏/1982

10‏/03‏/1982 · 22 د

Lum acquires Ataru's diary from the next day, which allows her to know what he shall go through today. Ataru tries to use it to his advantage, however... Mendo finds an alien child in his locker and goes through great lengths to hide it from everyone.

10‏/03‏/1982

17‏/03‏/1982 · 22 د

The whole Class 2-4 has fallen asleep due to a tiny spirit taking a make-up exam for her master. However, there is still Ataru, Mendō and Lum to make fall asleep. A poetry-reading contest takes place at a blossom orchard, where it is said that a wizard of poetry uses a maiden to lure men for a poetry challenge.

17‏/03‏/1982

24‏/03‏/1982 · 22 د

By eating a manju Cherry intended to bury, Ataru splits into two, one polite and the other casual. As Ataru sleeps in class after continuously losing to Lum in a card game the night before, he keeps having weird dreams until meeting a weird fellow feeding nightmares to a baku.

24‏/03‏/1982

07‏/04‏/1982 · 22 د

Lum returns to her home planet unaware that her father is throwing her a matchmaking party. As Ten blabs about it, Ataru uses his spaceship to follow her.

07‏/04‏/1982

14‏/04‏/1982 · 22 د

On a school field trip, Ataru gets involved with Kappas and a limestone cavern reveals Mendo's greatest weakness.

14‏/04‏/1982

21‏/04‏/1982 · 22 د

Ataru and Ten switch bodies after wearing some kind of special earmuffs.

28‏/04‏/1982 · 22 د

Ataru becomes the owner of a white caterpillar that Lum's Stormtroopers gave him as it eats a lot more than ordinary caterpillars.

05‏/05‏/1982 · 22 د

Ten has an unrequited crush on Sakura.

12‏/05‏/1982 · 22 د

Dracula wants to suck the blood of a beautiful young girl and his target is Lum.