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.
Lala quickly falls in love with him, and Zastin also approves of their engagement, much to Rito's dismay.
The chapters were collected into 18 tankōbon volumes were published by Shueisha in Japan between November 11, 2006 and April 2, 2010.
Both manga series are licensed in North America by Seven Seas Entertainment who will release them in print and digital formats.
The manga was serialized in Shueisha's Weekly Shōnen Jump magazine between April 24, 2006 and August 31, 2009, and the chapters collected into 18 tankōbon volumes.
The manga series' title, とらぶる is the English loan word "love".
A 12-episode second season by Xebec titled Motto To-Love Ru aired between October and December 2010.