Not meant to be an AU, just a silly crossover design challenge thing!

Mostly because I had the thought “Kasen is extremely Ralsei-like” which of course was followed by “surely I can draw the WaHH trio as the Deltarune trio, they share so many similarities” followed by the incredibly scary string of words “Yukari Gaster” manifesting in my brain, at which point I knew I was going too far and slowly loosing myself to madness and had to stop.