"To Love-Ru Darkness" is a Japanese manga series written by Saki Hasemi and illustrated by Kentaro Yabuki. It is a sequel to the original "To Love-Ru" series and follows the life of Rito Yuuki, a high school student who finds himself entangled in romantic and comedic situations involving various alien girls, including Lala Satalin Deviluke and Momo Belia Deviluke. The story explores themes of love, friendship, and the challenges of adolescence, often incorporating elements of science fiction and fantasy. The series is known for its harem dynamics and humorous misunderstandings, making it popular among fans of the genre.