Holy shit they went to One Piece and BEYOND. This chapter is fever dream on steroids Goddamn
Plus Gomu!
Now's the time that I welcome an "it's all a dream" ending.
I'm expecting this to be a god thing. Usually the interaction with the supernatural is limited to Rentarou, but then we got Matsuri and the Infinity God so maybe the girls are going to start encountering it from time to time themselves.
I like how on re-read there's hints to what's up even before Rentarou goes Gum-Gum.
Mei noting a strange impact
after they were in the clouds, Matsuri noting the sun is slightly larger (since they're slightly closer to it), the convenient spring and fruit
Also, Shiuzka never speaks at all in this chapter presumably to preserve her phone battery for an emergency