On the official website for the To Love-Ru Darkness anime a new promotional video has been released for the OVA bundled with the 17th volume of the To love-Ru Darkness manga. In the video we are shown scenes from the chapters which the OVA are adapting while featuring Sairenji Haruna. The OVA will be adapting the mangas 54th chapter titled “First accident? ~Hajimete no~” and the 55th chapter titled “I think ~Ippo Mae ni~”. A fan poll was held on the website which allowed fans to vote for which chapter the OVA would adapt. The OVA will ship with the 17th manga volume on December 2nd and is the second of two planned OVA’s. The first planned OVA shipped with the mangas 16th volume on July 4th and focused on Sephie the mother of the Deviluke sisters. The manga is a sequel of the original To Love-Ru manga that began October 4th 2010 in Jump Square. It would later get an anime adaption October 6th 2012 and end December 29th 2012 releasing 12 episodes, the series would also later receive a second season.
The series story can also be scene below for those unfamiliar quoted from MAL:
As close encounters of the twisted kind between the residents of the planet Develuke (represented primarily by the female members of the royal family) and the inhabitants of Earth (represented mainly by one very exhausted Rito Yuki) continue to escalate, the situation spirals even further out of control. When junior princesses Nana and Momo transferred into Earth School where big sister LaLa can (theoretically) keep an eye on them, things SHOULD be smooth sailing. But when Momo decides she’d like to “supplement” Rito’s relationship with LaLa with a little “sisterly love,” you know LaLa’s not going to waste any time splitting harems. Unfortunately, it’s just about that point that Yami, the Golden Darkness, enters the scene with all the subtleness of a supernova, along with an army of possessed high school students! All of which is certain to make Rito’s life suck more than a black hole at the family picnic. Unless, of course, a certain semi-demonic princess can apply a little of her Develukean Whoop Ass to exactly that portion of certain other heavenly bodies!