A DLL Library tool to allow you write your own string editor or resouce manager in C# Tested with: Nekopara Vol.0 & Vol.1, Dracu+Riot, Wagamama [Steam ver] (.scn, .pimg and .psb), TJS2100
Try use this: https://github.com/UlyssesWu/FreeMote/tree/master/FreeMote.Tools.PsbDecompile
This tool is a proper PSB Editor, can help you with the .pimg, .psb, .scn too.