I have some doubts it's Koikatsu. Models (mesh) seem to be similar, but style (textures and lighting) is too different. I'm not sure if it's possible but perhaps models were made with Koikatsu, but then exported and rendered in a different 3D/Game engine.
Nope I use koikatsu. It might look different because I manually edit the characters' textures sometimes to make them look better, and I use a reshade shader to make the lighting a bit better. I'd like to use a different engine to render the scenes if/when it becomes a possibility.
