Oh! I just skimmed the last chapter and read the comments guys this is not the last chapter! this is just the end of the first volume! There is three volumes because there is three different spoiler:
Spoiler!
Timelines. The first timeline is where you all read the second timeline is where Arok the uke start all over again where he remembers everything but not Klopp and the third timeline is where Klopp remembers everything but not Arok