PetPet Park Plot Missions

I just realized there were mission plots related to the new PetPet Park. I have not really figured it out, yet. It seems you click proceed to mission at the end of the comics for the missions. Currently I started this cave one. Anyone more in then know than me have any advice for this plot? I would so love to be more informed on this and will try to feel it out myself if/when I get some time.