Things go from bad to worse for Rito.  First, he has a bunch of aliens show up, and then he finds that he's engage to a galactic princess, now the girl he really likes is mad at him? How could things possibly get any worse? Oh, well, having Lala's father blow up the earth would be pretty bad. Rito has only three days to set things right and prevent King Deviluke's wrath over a broken engagement?

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.

Rito is having a hard time adjusting when Lala's sisters move in...a really hard time. Momo's attempted seductions leave Rito frazzled--and then there's still the pressure of his unannounced love for Haruna.

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.  Through their whole afternoon, she tries everything she can imagine to get Rito’s attention.  From fishing poles to vacuums and even fabric-eating fish, each of her attempts ends in disaster for Rito.  She finally gets some advice from Montemitsu and Rito’s teacher, but finds herself in a spot of trouble with the other patrons of the park.  Rito steps in to help her and Lala whips out one of her new inventions.  Unfortunately for Rito, this is only the beginning of Run’s campaign for his affection.

Yami falls ill with fever, and Rito rushes her to the hospital. When she recovers, Yami questions why Rito would help her since he is her target. Kyouko and Ren eat lunch together where they end up bonding and proving useful to each other. When Lala and Rito meet with Haruna, they notice something is wrong. Haruna is not acting like herself—and, as it turns out, she’s not!

Rito receives a message from the King of Deviluke which orders him to board the Devilukian spaceship as he has to prove he is the best in the universe. Before boarding the ship he confesses his feelings for Haruna.

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!

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.

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

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

Momo sneaks into Rito’s bed. Mikan, who wants to catch Momo, sneaks in as well but does not find anything. She does, however, end up staying the night. Rito and Lala pursue a drunk Celine, who spreads her pollen to Yami, which causes her to fall for Rito. Haruna cannot fight her feelings any longer, so she tells Lala that she also likes Rito.

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.

Rito delivers assignments to a sick Yuki who panics with a boy in her room. Frazzled and fumbling, Rito accidentally touches her breasts. Rito wears Lala’s glasses, which enable the wearer to see through people’s clothing. Saruyama falls in love with Rito, and Lala sets up a date for them.

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.

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.

Rito is a shy boy just trying to get through life and pluck up the courage to confess his love to his long time school crush. Of course, the universe seems to be against him, even to the point of dropping a naked runaway alien princess named Lala quite literally into his lap and bathtub. As if things couldn't get stranger, in the suds and confusion, Rito now finds himself engaged to the girl who fell from the sky.