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.
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. They compete for the title of Greatest Hunter in the Universe.
Rito is about to have the worst ‘meet the parent' experience in the whole universe! Lala's father, King Deviluke is coming to earth to see if Rito is worthy of being his daughter's future husband and eventual ruler of their planet.
The athletic festival has arrived and Rito is in the lead to making a complete fool of himself. He's trying everything he can think of to impress Haruna, but keeps accidentally bumping and touching her.
Yui convinces the principal to allow her to set some rules for moral behavior at school and creates an enforcement squad. Rito comes under Yui's special attention, as she suspects that he is the one behind the corruption of good and decent values.
Trying to win over Lala, Ren first turns to Rito for advice, then to the female students at school. He embarks upon a rigorous training regime, including fighting a gang leader and Big Foot before finally taking on a 120 km marathon.
Mikan is helping Lala feel right at home with delicious home cooked meals. Rito is desperate to find a way to get out of marrying Lala without attracting her father's rage and being at fault for the destruction of the earth.
In an attempt to cheer up Rito and teach Lala more about earth culture, Mikan decides they should go on a tour of the city. Disaster is narrowly averted following a wardrobe malfunction and Lala's inventions at the aquarium.
Rito has been trying 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 runaway alien princess quite literally into his lap.