Itsudemo Jitaku ni Kaereru Ore wa, Isekai de Gyoushounin wo Hajimemashita - Vol. 6 Ch. 56

[AncientWatcher]

This arc is pure mood whiplash. Both of the sisters still suck.

Also, how in the hell is a winged puppy a dragon?

 

[Carn109]

The dragon has got that dog in em

 

[TenThousandWaspsInACoat]

Someone said in the comments of one of the other chapters that the reaction to them in the light novel was about the same as it is here.
Possible spoiler?
Apparently, they just kinda disappear after this arc and aren't mentioned again. And this volume of the novel has the worst sales of them all lol.

Makes sense, they add nothing, treat the MC horrible, and feel like unnecessary characters who'd get "all the powers and regular isekai stuff" if they stuck around.