When Devilukean commander Zastin arrives to bring her home, she swiftly declares she will marry Rito in order to stay on Earth, leading Zastin to attack Rito.
But when Rito angrily declares that marriage is only possible with the person you love, the two dull-witted aliens misunderstand him, believing he truly understands Lala's feelings.
The story of To Love-Ru revolves around Rito Yūki, a shy and clumsy high-school student who cannot confess his love to the girl of his dreams, Haruna Sairenji.
One day when sulking in the bathtub, a mysterious, naked devil-tailed girl appears out of nowhere.
Her name is Lala, the runaway crown princess of the planet Deviluke.
Her father wants her to return home to marry one of her marriage candidates.
A drama CD was released in February 2008 with an original story.
A 26-episode anime television series adaptation by Xebec aired in Japan between April and September 2008.
To Love-Ru will be published in two-in-one omnibus volumes, and To Love-Ru Darkness will be released as single volumes.
The anime's opening theme is "Forever We Can Make It!
" by Thyme, the first ending theme for episodes one through thirteen is "Lucky Tune"; both are sung by Anna.
Six original video animation episodes were produced by Xebec between April 2009 and April 2010.
A 12-episode second season by Xebec titled Motto To-Love Ru aired between October and December 2010.