Today North American manga and novel published Vertical Comics has confirmed at their at Anime Expo that it has licensed NisiOisin’s and VOFAN’s Nisemonogatari light novel series. From what has been said April 2017 will be when the first two novels are released. The light novels originally were published by Kodansha in Japan on 2008, the series is apart of the Monogatari Series: First Season novels which began November 1st 2006 and ended July 28th 2010 releasing 6 volumes. The series would also spawn a 11 episodes anime series and that started on January 8th 2012 and ended MArch 18th 2012.
The company Vertical announced back in February that it had plans to release NisiOisin’s three Bakemonogatari novels December 2016, January 2017 and February 2017. Thus far Vertical has already released NisiOisin’s and Verticals Kizumonogatari novel series in December, mind you that Kizumonogatari is the third book apart of the Monogatari Seires: First Season novel series. It should also be noted that the reason why they started with Kizumonogatari is due to the fact that NisiOisin’s editor suggested it and his team is very involved in the project. This was a statement given by Vertical’s marketing director Ed Chavez. Finally is a plot summary of the Nsemonogatari novel series below quoted from MAL:
To begin with, I don’t believe in the existence of any demographic which would desire to know the story concerning Araragi Karen and Araragi Tsukihi—in other words, my little sisters—but even if, for argument’s sake, such a unique demand existed, I don’t believe I would ever want to talk about those two in a proactive way.