The eighteenth volume of Kamisama Kiss was originally published in Japan by Hakusensha on May 20th, 2014. It was originally published in English by Viz Media on June 2nd, 2015.
Publisher's Summary[]
Nanami’s journey to the past was a success! She found a way to break the curse and save Tomoe, and he even admitted that he has feelings for her. Now they’re both ready to enjoy life as a happy couple. Tomoe is hoping to spend some special alone time with Nanami, but instead they go on a school trip to Okinawa with the entire grade—and things go from tropical paradise to yokai nightmare in no time!