Motto To LOVE-Ru

Rito Yuuki never has a break since he frequently engages in indecent acts with the nearby girls. Rito can't help but question his feelings for Lala, the alien princess who appeared in front of him and announced she would marry him, even though his heart still yearns for Haruna, his childhood sweetheart. He now has to cope with Momo and Nana, Lala's younger twin sisters, who have come to Earth to meet their elder sister's fiancé. As luck would have it, they wind up sleeping at Rito's house. In the meantime, Yami, the human weapon girl, starts looking for Rito amid the commotion of his new family members. Rito has a difficult life since he has to deal with unreliable love, being punished for being a pervert, and a female who is out to kill him.