To LOVE Ru

Lala and Rito are late for school, and Lala takes the opportunity to confess her feelings for him. They use a teleportation device to get to school faster, but they arrive sans clothing!

As Rito attempts to keep Haruna away from Lala's gadgets, they accidentally activate one and are warped to another location naked, of course!

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.

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. Haruna thinks she may have a stalker. Nana and Momo go to extremes to avoid studying the Royal Lineage of Deviluke.

Rito avoids Lala while Saki daydreams of Zastin. Ren and Lala have a gas literally! An alien skunk gas turns them both 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.

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.