EP 01I’m Lum the Notorious! - It’s Raining Oil in Our Town1-1. I'm Lum the Notorious!
This episode opens with a baseball game and Ataru getting hit with a left field flyball. Ataru is soon escorted home and discovers he's been chosen to fight an invading alien force's champion in a 10-day game of tag. If he loses, the aliens will invade. 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.
1-2. It's Raining Oil All Over Town
This episode opens with Ataru friends Megane and Lum's Stormtroopers at school who are watching films of the tag game. In this episode, a space taxi gives Ataru a ride home by accident and the fee is...too much. Since Ataru cannot pay, the space Taxi Collection Agency starts stealing all the oil in the world.
EP 02Mail from Space! Ten arrives. / Mrs Swallow & Mrs Peguin2-1. Space Mail Arrival of Ten-chan!
This is the first episode with Jariten, Lum's cousin. Jariten arrives in a giant peach and he and Ataru are enemies at once.
2-2. Mrs. Swallow and Mrs. Penguin
This episode opens with Lum putting on makeup to go meet Darling at school. A swallow swallows some food Jariten gives it and it grows such that it looks like a penguin. It's appearance in school is just the start of a full day of panic.
EP 03The Coming of Rei, the Handsome Shapechanger / Die Ladykiller!3-1. The Metamorphic Handsome Man Rei is Here!
This show features the first appearance of Rei, Lum's former fiance. This episode opens with Ataru in his room watching a storm, and Lum trying to coax him to bed. Shinobu meets Rei and brings him to Ataru's house. After a lot of arguing, Rei challenges Ataru to a duel for Lum.
3-2.Drop Dead, You Lady-Killer!
Ataru, Megane, and friends are going to a Gyudon restaurant for lunch and are quite shocked to see Rei munching down food like a black hole. During the rest of the episode, Rei is chasing Lum, Ataru and friends and as the chase goes on, the chaos grows on.
EP 04Kintaro from the Autumn Sky / Gonna Live Like a Man4-1. Kintaro of the Autumn Sky
First episode with Kintaro, the vicious little boy with the pet flying bear and the red haired alien nanny. Lum and Jariten meet Kintaro inside a wind carp, and Kintaro tells them he's was looking for his nanny in the carp. Ataru, Shinobu, Lum, and Jariten try to help Kintaro find his nanny by asking around.
4-2. Live Vigorously!
Kintaro's nanny, with Ataru's help takes the alien children on a tour of Earth and a Earth child's school. Ataru tells the myth of the real Kintaro who grew up in the wild and slew a demon. So Kintaro decide to live up to his name.
EP 05Sakura, Raving Beauty of Mystery / Virus in Distress5-1. The Mysterious Seductive Beauty Sakura
First appearance of Sakura, The Shinto maiden. Ataru can no longer endure Lum, so he has gone undercover. Unfortunately, at a restaurant, the appearance of Lum, Ataru parents, Shinobu, and Cherry blows his cover; and a mob chases after him. He manages to duck them and bumps into Sakura, who takes him home for exorcising.
5-2. Tormenting Virus
Arriving at school one morning, Ataru is greeted by all boys in the school who are waiting for the new nurse, Sakura, arriving at school today. Ataru appears to be sick, but in reality he is possessed; and Sakura performs the exorcism.
EP 06Black Hole Love Triangle / It’s a Lovesick Little Demon!6-1. Love Triangle Black Hole
Ataru is phoning Shinobu in order to make plans for a date, when Lum interrupts and get's Shinobu mad at Ataru. Ataru throws Lum out and spends the rest of the episode trying to contact Shinobu. But Lum is persistent and uses a ray to jam the phone lines. But this ray also has the side affect of making a plane and a helicopter vanish.
6-2. Hey Hey, It's a Little Demon
Walking home from school, Ataru is assaulted by a group of black cats and gets a nasty bump on the head. At midnight, he is using two mirrors to look at the bump, when a little demon pops out of the mirror. The demon proves to be too much for Ataru and Mr. Moroboshi, so they get Cherry to exorcise it.
EP 07Electric Shocks Scare Me / Voodoo Dolls of Vengeance7-1. The Scary Electric Shock!
Cherry gives Ataru some yellow ribbons which when tied to her horns, negate Lum's powers. In order to coax Lum into wearing them, Ataru has to put on a big charade of really loving her.
7-2. The Doll of Ill Will
After an odd loss of control of his body after dinner, Ataru finds out Lum has some clay for making voodoo dolls. Ataru takes full advantage of the situation until Lum make a doll of Shinobu, and Ataru tries to get it away from Lum.
EP 08Neptune Beyond the Closet / The Confusing Dinosaur Age8-1. Neptune Beyond the Closet
First appearance of Oyuki, Lum friend and queen of Neptune. Oyuki also has incredible ice powers. Megane and friends visit while Shinobu is nursing Ataru, who has a cold; and they discover a gate to Neptune in Ataru closet. By accident, they go through this gate and arrive on Neptune to be greeted by Lum and Oyuki.
8-2. The Confusing Dinosaur Age
While Ataru is flying an ultra-light, with Lum and Jariten tagging along, Kintaro crashes into him. With the help of Lum's electric shock, the crash send them all back in time to the dinosaur age.
EP 09Princess Kurama, Sleeping Beauty / Athletics in Women’s Hell!9-1. Sleeping Beauty Princess Kurama
First episode with Kurama, the karas-tengu princess. On a field trip, Ataru and friends accidentally meet a karas-tengu who takes Ataru to marry Kurama. Kurama then tries to reform Ataru to be her perfect husband.
9-2 Athletic Woman Hell!
Kurama uses a weird dimensional door to try and cure Ataru of his lechery. Inside the door, Ataru faces hostile versions of the girls he loves.
EP 10Pitter-Patter Christmas Eve10. Pitter-Patter Christmas Eve
Megane and Lum's Stormtroopers set up a plot to embarrass Ataru and get Lum to leave him at the same time. They set up a date who will make a fool of Ataru, but Lum finds out and twists things around.
EP 11Ataru Genji Visits Heinkyo11. Ataru Genji Visits Heinkyo
First appearance of Mendo, the rich noble; but it is not until episode 27 that he really does anything. Mendo tells a tale about ancient Japan featuring the normal cast in a slightly different alien invasion story. The aliens this time, all look like a bunch odd barbarians, except for a pretty girl and her young boy cousin.
EP 12Love Battle Royale / Father, You Were Strong12-1. Love Battle Royale
First appearance of Tsubame, Sakura's boy friend who has some magic abilities. Sakura invites Ataru, Lum, Shinobu, Megane, Perm, Chibi, and Kakugari to a disco. Things later go haywire as Tsubame starts casting spells and all sorts of weird creatures appear, including Rei.
12-2. Father, You Were Strong
Kurama takes Ataru back in time to help her father who appears to be afraid of women. Later Ataru and Kurama's father have to get past a guard on a bridge.
EP 13Hawaiian Swimsuit Thief / Full Course from Hell13-1. Hawaiian Swimsuit Thief
Ataru, Lum, Shinobu, Sakura, Megane, Cherry, and others are staying at a beachside resort. During the day, an octopus is stealing peoples swimsuits, but it appears to look like Cherry is doing it. At the end, they find the octopus and beat him up.
13-2 Full Course from Hell
Still at the resort, the group meets some maniac who is having an all-you-can-eat contest. Sakura reveals the secret of her figure to be a diet pill called ""Beauty Foods."" But we really know the real reason is Sakura can just plain eat like a whale, and we see her do so as she beats Ataru and Cherry in the contest and clean the maniac of all his food.
EP 14Mendo Arrives With Trouble! / Constellation-Go-Round14-1. Mendo Arrives With Trouble!
Mendo returns for a formal introduction on his first day at school. He and Ataru have a duel for presidency of the class which ends in a tie. So they have a duel with cannons, which Ataru wins with help from Lum.
14-2. Constellation-Go-Round
Lum's computer tells her that Mendo is really the best choice for her lover, so she brings a set of constellation scales to school and weight Ataru versus Mendo in a series of test in the scales. At the end, the scales break and we see the class as constellations.
EP 15The Great Spring War / The Benten Gang’s Return Match15-1. Great Kiss War
First appearance of Benten, Lum's best friend the goddess. Lum takes Ataru to another planet to help in a battle against Benten's family. The battle consists of catching stones in bowls on a giant set of scales. Ataru starts playing with Benten and ends up messing up the entire game.
15-2. The Benten Corps' Return
Match Benten and her girl biker friends come to Earth for another round of fun. Ataru sides up with Benten again, and Lum recruits Jariten and some people dressed as demons.
EP 16Oh, Lonely Teacher! First appearance of Kuribayashi Sensei / Terrible Inspection Day16-1. Oh, Lonely Teacher! First appearance of Kuribayashi Sensei
Ataru and Kuribayashi are enemies from the very start. Then Lum shows up and Kuribayashi falls in love. Finally Lum goes out with Kuribayashi in hopes on lightening his spirits.
16-2. Terrible Inspection Day
On a day when students mothers come to school, Mrs. Mendo and Lum's mother get into a dispute and Mrs. Moroboshi acts as judge by setting up a roulette game.
EP 17The 4-D Camera / Demonic Jogging17-1. Fourth Dimensional Camera
Mendo bring an antique camera to school that sends Ataru off into other worlds. Lum manages to find him through a class room window that had been stuck for years.
17-2. Demonic Jogging
Every morning, Ataru goes jogging early to see girls. On the way to school, Ataru breaks the fall of an attempted suicide as he was grabbing for a 100-yen coin below her. Ataru and Mendo get into a dispute over who is more noble and end up playing a game of tennis.
EP 18Girl’s Day! Ran-chan’s Arrival / Ran-chan’s Introduction18-1. Girl's Day! Ran-chan's Arrival
First appearance of Ran, Lum's childhood friend. During a small celebration at the Moroboshi house, a little doll enchants Ataru to follow it to Ran. Ran tries to kiss Ataru to drain his youth, but Lum shows up.
18-2 Ran-chan's Introduction
Ran invites Lum, Ataru, and Ten over for cookies and tea, but her real plot is to suck Ataru's youth. Ran makes a double of Ataru and tries switching them, but she gets confused and loses the real Ataru.
EP 19The Tearfull Diary Of Tomorrow / Whose Kid Is This?
EP 20Sleeping in Class on a Wonderful Spring Day / Peach Blossom Poetry Contest
EP 21Duel! Ataru vs. Ataru / Waking to a Nightmare
EP 22The Great Space Marriage PlanLum returns to her home planet unaware that her father is throwing her a matchmaking party. Ataru (who knows about the party) and Ten follow her.
EP 23The Spring Blossom PicnicOn a school field trip, Ataru gets involved with Kappas, and a limestone cavern reveals Mendo's greatest weakness.
EP 24Beware the Earmuffs!Ataru and Ten switch bodies after wearing special earmuffs.
EP 25Fly, Imo-chan!Ataru becomes the owner of a white caterpillar with a ravenous appetite.
EP 26Ten-chan’s LoveTen develops an unrequited crush on Sakura.
EP 27What a Dracula!Dracula arrives in town and sets his sights on Lum as his next victim.
EP 28Lum’s Educational Therapy for Little BoysLum travels back in time in order to meet a younger Ataru and cure his libido.
EP 29From Speechless with LoveAtaru and Ten compete for the attention of the pretty female proprietor of a flower shop.
EP 30The Beautiful Maiden Comes with the RainThe gang meets Tsuyuko, a girl who seems to bring rain wherever she goes.
EP 31Give Me Back My Horn!Ten's horn falls off during a fight with Ataru, leaving him weak and unable to breathe fire. Ataru wastes no time in taking advantage of the situation.
EP 32All Quiet in the Library!Chaos ensues at the library after the characters in the books start coming to life. Wendy Darling (from J.M. Barrie's Peter Pan novel) enlists Ataru and Lum's help in restoring order.
EP 33Teacher Hanawa’s Arrival! Such is Youth!
EP 34Yearning for the Sad Goblin
EP 35Darling’s Had It This Time!
EP 36Rei Returns! Crisis in the Classroom
EP 37Appearance of the Red Phantom!
EP 38Steal Darling! The Copy Operation!
EP 39Pitter Patter, Summer DateEP 40So Long, Bye-Bye, Summer DaysEP 41Panic in the Typhoon!EP 42Drunken Boogie
EP 43Fear of Meow
EP 44After You’ve Gone
EP 45Lum-chan’s Class Party
EP 46Lunch is a Battlefield!
EP 47Shiver! Mystery in the Odd Fossil Land
EP 48Princess Kurama’s New Challenge
EP 49Terrible Toothache Wars!
EP 50The Mendo Older Brother & Younger Sister!
EP 51Cat on the Stairway
EP 52Can the Raccoon Return the Favor?
EP 53Desperate Sub-Space Part-Time Job
EP 54Lum-chan’s Great Year-End Celebration!EP 55Children in Vain, Musashi, Signs of the TimesEP 56Risking One’s Life in ClassEP 57Is a Husband & Wife Quarrel Survival of the Fittest?EP 58Getting a Kiss from Miss. Snow!EP 59St. Valentine’s Day HorrorEP 60Love, Love, Catchball!EP 61The Mendo Family’s Masquerade WarEP 62Space Cold Panic!EP 63Ryunosuke Arrives! I Love the Sea!EP 64Goodbye SeasonEP 65Ran-chan’s Great Date PlanEP 66Happy Birthday My DarlingEP 67Seeing Shangri-La as a Hell Camp!EP 68The Groom’s Name is RyunosukeEP 69Bottled Letter Seashore Mystery!EP 70Dramatic Appearance! Mizunokoji Ton-chan!EP 71Shinobu’s Cinderella StoryEP 72Lum-chan the Ruthless RebelEP 73The Big Showdown! Sakura vs. SakuranboEP 74Ghost Story! Old Man Willow!EP 75And Then There Were NoneEP 76Firefighter Mommy Visits!EP 77Darling’s Dying!?EP 78Pitiful! Mother of Love and Banishment!?EP 79The Mendo Family’s Summer ChristmasEP 80Panic at the Ghost InnEP 81Ah, Mother of My MemoryEP 82Plenty of Sun, Plenty of SicknessEP 83Big Bang! Ten vs. AtaruEP 84Horrors! Attack of the Slimy Potatoes!EP 85Revenge of the Planetary Instructor CAO-2EP 86Hysterical! The Nasty Brat Shutaro!EP 87Wonderful! The Magic Mushroom Pot!EP 88The Wrathful Lum-chan!EP 89Lum and Ataru, A Night AloneEP 90Lady RyunosukeEP 91Document: Who Will Be Miss Tomobiki?EP 92Strange! The Wonder Medicine of SelflessnessEP 93Shutaro, Miserable MorningEP 94Tales of the Wandering SnowmanEP 95Lum-chan’s Ancient Japanese Fairy TalesEP 96Shine! The Blessed Bra!!EP 97Duel! Benten vs. the Three DaughtersEP 98Plenty of Lum-chans!EP 99Certain Death! Stand-Up Eating ContestEP 100The Great Vault! Courageous Survival!!!It all begins when aliens invade and threaten to conquer the Earth! However, one member of the human race is chosen at random to duel the aliens and save the planet: Ataru Moroboshi, a lecherous slacker from Tomobiki High School who begrudgingly participates. All he has to do? Play a game of tag and catch Lum — the beautiful alien princess in a tiger-stripe bikini — by the horns. Unfortunately for Ataru, it’s not so simple, since Lum can fly and deliver electric shocks! Perseverance pays off, but once he catches her, Ataru experiences another shock: He’s now Lum’s betrothed “darling” and she isn’t going back to her home planet anytime soon! (Source: Crunchyroll)
