I assume what happened here is that the chapters weren't performing well in the monthly rankings or the volumes weren't selling enough so the editor intervened and suggested ways to make it more lighthearted, sexual, and fast-paced. Now it's less of the Cro-Magnon Berserk we thought it was going to be and more of a gag manga. All we can do is try to recover from the whiplash and have some laughs as Akuu plows through more monsters, women, and timeskips.