Rito tries to work up the courage to confess to his long time crush. The universe seems to be against him, dropping a naked runaway alien princess named Lala into his bathtub.

Rito finds that he's engaged to Lala and has three days to save the planet from her alien father, King Deviluke. To make matters worse, his longtime crush is mad at him.

Lala is the new transfer student at Rito's school and even though he implores her to keep a low profile, her antics are making her rather popular.

Inspired by Mikan's hot meals, Lala tries to cook, but the results are yucky. Rito sees his chance and declares that he will not marry Lala unless she can cook well for him.

Saki Tenhouin, the queen of Sainan High School, becomes jealous when she finds out Lala's popularity is on the rise and challenges her to the Miss Sainan Competition.

Lala wants to learn more about Rito, but she may have gotten the wrong idea in science class during dissections.

A new rival for Lala's affections has arrived at Sainan Private High School: Ren, one of her childhood friends.

One of the school prefects, Yui, is all about good morality. She convinces the principal to allow her to create an enforcement squad, making Rito public enemy number one.

Another suitor blasts his way into the picture, this time quite literally, wearing an armored rocket suit, trying desperately to snatch Lala.

The president of Lala's fanclub comes to take Lala away for an idol CD, but she refuses so she needs to find a 'golden egg' to do the acting. Rito tries to stop her when the president fixates on Haruna, saying that only Haruna could work as as substitute for Lala.

Rito is attacked by a strange, golden haired girl on the street. It turns out that she is an assassin, know as Golden Darkness, hired to kill him.

The athletic festival has arrived and Rito makes a complete fool of himself, trying everything he can think of to impress Haruna.

King Deviluke is coming to Earth to see if Rito is worthy. Rito is left with only one option: become the Greatest Man in the Universe.

With Rito's Greatest Man in the Universe training underway, he runs into Haruna and they develop an unlikely relationship, which finally escalates in Rito's favor: a date!

Rito, Haruna, and Lala are moving up in the universe, when an alien prince visits and they each become Ambassadors of Peace from the Earth.

Everyone decides to have a fun afternoon together at the water park. However, Rito now has a new source of relationship drama: Run has fallen in love with him, too.

Rito and everyone decide to go to the old school to find out if the rumor of a ghost haunting the building is true.

A spaceship flies over the school and drops off a package for Lala on the roof. Inside the package is a pregnant wolf that jumps out and tries to kill her!

After seeing a commercial on TV promoting a hot springs, Lala tells Rito that she wants to own one, proceeding to build her own right in their backyard.

General Mojack decides to try and take over the world so Kirisaki takes it upon her self to destroy him by turning into Magical Kyoko Flame.

Yuuki hears about an alien hotel being run by Mikade-sensei and Kimio. There, Yuuki decides to try it check it out via the old school building.

Everyone is upset by Yui's submission of what they should do for the culture festival. She submitted that they do a region research display or a calligraphy display.

Saruyama wishes that he was a nobleman from the Edo Castle. He then starts to daydream about being the ruler of Edo Castle.

Lala's personality changes due to a fever. Rito now has to deal with Lala's constantly changing personalitues and her desire to take over the world as a deviluke princess.

Rito receives a message from the King which orders him to board the spaceship and prove he is the best in the universe. Before boarding, he confesses his feelings for Haruna.

Yuki wakes up to Haruna and Lala yelling at him that he is about to miss the ship. Lala decides she can't marry unless he wants to.

When Lala heard that all men are interested in boobs she started to make an invention that will make her boobs bigger. All of a sudden Rito flies out from a school window and crashes into the invention turning him into a girl.

Rito is always spending time with Lala, he barely talks to Mikan that much so she felt a little lonely and stormed out of the house alone, While Rito and Lala went looking for her, there are few flashbacks of Rito and Mikan in the past as Rito and Lala try to find Mikan.

Haruna wins a south island resort trip for ten females.

Rito and the others got inside into a RPG game made by Lala's sisters.

Lala's sisters cause mischief for Rito and company at a cherry blossom viewing.

PART A. Yami and Yui have a confrontation with a senior, causing Yui to lose her panties. PART B. Mikan has her bag stolen while shopping. She uses Peke's transformation abilities to pursue the thief. PART C. An invention of Lala's causes Rito's hand to become fused to Lala's tail.

When Lala and Rito are running late for school, they'll realize that using a teleportation device get to school faster can have some visible consequences.

As Rito attempts to keep Haruna away from Lala’s gadgets, they accidentally activate one and are warped to another location -with no clothes!

Rito delivers assignments to a sick Yuki who panics when a boy is in her room. Later, Rito tries on Lala's glasses and discovers a surprising trick with them.

Since Yami always wears the same clothing, Risa and Mio take her shopping. However, her new and improved wardrobe prevents her from using her weapons properly.

Rito avoids Lala while Saki daydreams of Zastin. Everyone prepares for Valentine’s Day, and Rito is the object of desire for many.

Things go awry when the group visits Saki’s private beach. Lala helps Rito study for an upcoming math test.

Yami falls ill with a fever, and Rito rushes her to the hospital. As she recovers, Yami questions why Rito would help her.

Haruna feels self-conscious about the size of her bust, and later finds a stray dog! Mikan and Yami switch bodies to experience each other’s abilities.

Mikan and Rito’s parents are never home, so the approaching Christmas holiday doesn't excite them, but Lala still helps fulfill one of Mikan's wishes.

Celine is drunk and spreads her pollen, making Saki and the others fall for Rito. Later, a misunderstanding by Momo sparks an interesting turn of events.

Momo sneaks into Rito’s bed. Mikan, who wants to catch Momo in the act, sneaks in instead! Meanwhile, Celine is drunkely polinating and this time, Yami is under fire.

An outing goes horribly wrong, and Rito comes to an incredible realization, with a more incredible dilemma around it.

Momo tries to get Rito’s attention by changing her hair style, but has little success. Momo then learns from Lala that Rito loves both Lala and Haruna, and since he will become king of Deviluke he can marry both girls, and return both of their love. Inspired, Momo begins a plan to eliminate Rito’s indecisive nature and create him a harem, that way Momo and the other girls who love Rito can have their love for him be fulfilled. A drunken Celine sprays Mikan with pollen, causing Mikan to develop romantic feelings towards Rito. As she waits for the effects to wear off, Momo learns of her plight and “helps” by leaving her alone with Rito. Mikan succumbs to the effect of the pollen and nearly kisses him, but manages to regain her senses at the last minute. Momo decides Mikan is not yet ready to accept her own feelings, but promises she will include Mikan in the harem. Thanks to one of Lala’s inventions, Haruna is turned into a cat and wanders the streets contemplating what to do. Remembering that Nana can speak to animals, she goes to find her, but runs into Rito. Circumstances then force Rito to give Haruna a bath, which becomes too much stimulation for her causing her to revert back to normal, albeit naked and on top of an unconscious Rito. An embarrassed Haruna is then left to explain the situation to a confused Mikan.

Rito is having a hard time adjusting when Lala's sisters move in and her attempted seductions leave him perpetually frazzled!

Rito learns that Yami still wants to kill him, and now she's an overnight guest in his house! However, it's not all rage and resentment! Momo continually tries to seduce Rito.

Momo is intent on making Project Harem a reality -- and she almost succeeds. Meanwhile, Mea begins to shake things up and prepares to welcome a dark force!

The vindictive Azenda the Tyrant comes to Earth to provoke Yami. Later, Haruna and Rito have yet an awkward encounter, and Mikan and Yami grow closer.

Rito dodges potential encounters with women -- and all their respective parts! -- but he soon gets a firsthand look at the female anatomy... and not in the good way.

Momo teaches Rito about the secrets of the female body and seeks to move Project Harem forward. Meanwhile, Rito learns about Ren and Run.

Rito is confused by his sudden feelings for Lala; true to fashion, things get awkward quickly! Momo and Mea also discover the true and endearing nature of Lala.

Rito begins to get closer with Momo, which makes Mikan uncomfortable. After Rin helps her during a near collapse while walking home, Mikan can no longer hold her tongue.

That Lala and her inventions. One of Lala's crazy contraptions ends up getting Rito and Yami stuck to each other by their hands!

The truth needs to come out. Yami finally begins telling Rito about her past, and explains how she came to be.

Kotegawa Yui is going to look at cats on the petstore as usual when she finds Rito on the way, they encounter the skunk of youth who broke free from Run's house. Rito tries to grab it but scares it and him and Yui end up turning young again. Eventually all of Rito's friends are turned into kids. Rito eventually was able to catch the skunk from a high wall where he almost fell but was saved by Yami. The skunk was then put into Nana's Phone where it won't disturb anymore. Back in school Yui asks Rito if he used to play around a temple she walked by and he confirmed, she then remembered he was the kid who saved a kitten that was stuck in a tree when she was young. Nana enters Rito's room wanting to talk to him, she asks him if he likes big breast girls. He blushes and starts imagening big breasts, Nana seems upset but Rito replies to her saying it's not the breast size that matters and Nana even not having big breasts has her own unique appeal. Nana removes her shirt and gets on top of Rito asking him if he sees her as a woman. Rito desperately tries to get away but grabs her breast, she doesn't slap him and leans to kiss him. Momo burts out of the closet to stop them. Momo and Nana had switched minds with one of Lala's inventions and Momo was the one in Nana's body. They walk away with Nana (now in her body) blushing and thinking about what she heard Rito say. Rito finds Celine playing with some flowers he's never seen. He smells a pot that has purple flowers and then walks away. Momo finds Celine and explained how those were her flowers and no one should smell them because they can have side effects, Celine told Momo Rito had smelled the purple flowers and she was really worried since those flowers change one's personality. Rito demands Lala to give him her see through glasses and asks her to pose for him. Excited, Rito starts asking for more breasts and runs to school where he looks at each and every girl and even looks closely at Yui's privates. Momo finds Rito and heals him before anything worse happened. Rito Falls unconsious on the floor from all the things he saw.

The Organization is on the move and Yami is the first target! Meanwhile, Lala learns of a new enemy that may be closer than she thinks.

Momo takes to playing dating sims to figure out how to get her harem under way. At school, a group of students form a Momo fan club, which ends up keeping her away from Rito.

The episode starts with all of Lala's inventions scattered across a table. Lala is called to help Tearju Lunatique with the copier. Rito and Haruna accidentally change bodies when they catch one of Lala's inventions falling off the table. Momo explains that they have to use each other's bodies for seven hours. After school, Rito in Haruna's body gets splattered with mayonnaise when Haruna in Rito's body steps on a bottle of mayonnaise. The real Haruna has to then give her body a shower. However, the timer countdown finishes during this time, leaving Rito touching Haruna. Celine finds one of Lala's inventions, but because it seems to be broken, Momo lets her play with it. However, it fires a dart that lets Celine massage Tearju Lunatique, causing problems for her as it makes her feel as if someone is playing with her body. When Rito sees Tearju limping, he thinks she might be ill, so offers to take her to the sickroom. Celine uses the machine to violently caress her on the way, making her fall on top of Rito. Yami sees them and thinks that Rito is being "ecchi" to Tearju, so tries to kill him. The device is later revealed to be an invention to massage yourself. Lala gives it to Honekawa because he has terrible back pain.

PART A: Run co-stars in the new Magical kyoko-Kun episodeKyouko with her friend Kyouko. PART B: Kyouko makes a speech in Rito‘s school. After Rito rescued her from the crowd, she start to have a crush on Rito. PART C: Yami is attacked by a mysterious creature, and has nothing to do with it.

PART A: Mikan‘s friends make a surprise viste to Rito‘s house. PART B: Lala's invention, a mobile phone, makes a lot trouble for Yui. PART C: Celine grows up becuse of the shine Moonlight.

PART A: Run wants Rito to take pictures of her with a special camera she ordered on the Galactic Catalogue, guaranteed to make anyone an expert photographer.

PART B: Momo coincidentally meets up with Risa Momioka, but when she agrees to a shopping date she gets more than she bargained for.

PART C: Haruna offers to teach Rito how to make omelette rice, but the temperature quickly rises to unsustainable levels.

Momo introduces the members of Rito's harem while recapping ecchi scenes. Included in the Blu-ray/DVD Vol.01.

PART A: Momo, Nemesis and Rito exchange scary stories before bed time, but Rito ends up being the only one terrorized and out of breath.

PART B: Rito and friends help out at the health clinic for aliens, but get in a spot of trouble when some old technology is accidentally activated by Tearju. Yami bears witness to a most unfortunate sight.

The Queen of Deviluke, Sephie Michaela Deviluke, pays a surprise visit to Rito's home on Earth, which seems to put Momo on the spot. It turns out she is worried about her mother's unfortunate charm ability of causing intense bestial-like attraction in any male who sees her face.

Later, all the women share a bath in a hot-spring inside the virtual safari when Rito wanders in chasing after Celine. He runs as far as the changing area where he sees Sephie's face, however he is surprisingly unaffected. This is not the case for the rest of the animals...

Lala surprise-invites Rito to Haruna's apartment, but a device that she was working on turns a small mishap into a titanic situation.

The next day at school, Rito and Haruna are both encouraged by their peers to resolve the problem. However the location they thought isolated is soon wrapped up in yet another disaster!

It was a normal day until Lala's mecha-cat got away... Rito then became his and every girl's exponentially worst problem.