TLDR : All in all an 8/10 for Slime Isekai lovers ig. I Haven't read the source materials or anything but if you loved/liked the previous seasons of Slime Isekai then you will definitely enjoy these 3 episodes. But the question does rise why they are animating such unrelated filler material type content when they can spend the same resources to just continue the proper main storyline. We get to see Rimuru, soei and benimaru in action and glimpses of Rimuru's wolf Ranga. Good pacing and a more or less well coherent story that spans 3 episodes well. The new characters introduced do seem one dimensionaland not well fleshed but they serve the purpose well for a 3 episode story . One point of concern was that the power scaling was a bit off in my personal opinion with normal looking demon being considered close to that charybdis clamity and rimuru actually having to think twice before going to combat. Also benimaru and soei felt strangely underpowered. Like that OPMCness was a bit lacking.