Lala vows to help Haruna find love. Saruyama points out that Rito has changed since became close with Lala. Rito realizes that he loves Lala. The problem is, he loves Haruna, too. Lala suggests that he marry them both.
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. Haruna cannot fight her feelings any longer, so she tells Lala that she also likes Rito.
Celine is drunk and spreads her pollen, making Saki and the others fall for Rito. Momo mistakes an innocent message for something sexual and after a series of misunderstandings, Yui ends up with a nude photo of Lala.
Mikan's and Rito's parents are never home, so the approaching Christmas holiday does not excite them. Lala helps fulfill a wish of Mikan's. Rito is accidentally transported into Peke's body. Rito pretends to be Ren's boyfriend as a favor.
Haruna feels self-conscious about the size of her bust but ultimately decides that the quality of her character is more important. Haruna finds a stray dog who turns out to be Rito. Mikan and Yami switch bodies to experience each other's abilities.
Yami falls ill with fever. Rito takes her to the hospital. Yami questions why Rito would help her. Kyouko and Ren eat lunch together and end up bonding. When Lala and Rito meet with Haruna, they notice she is not acting like herself.
Things go awry when the group visits Saki's private beach. Lala helps Rito study for an upcoming math test, but when the day comes, he cannot remember how to solve the problems. Lala tries to win Rito's attention, but she is not having much luck.
Rito avoids Lala while Saki daydreams of Zastin. An alien skunk gas turns Ren and Lala into children. Everyone prepares for Valentine's Day, and Rito is the object of desire for many. Yui tries to find the confidence to give her chocolate to Rito.
Rito delivers assignments to a sick Yuki who panics with a boy in her room. 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.
As Rito attempts to keep Haruna away from Lala's gadgets, they accidentally activate one and are warped to another location. An unfortunate event finds Rito in front of a group of naked and surprised girls.