Welcome to Planecrash / Project Lawful / Mad Investor Chaos and the Woman of Asmodeus, a roleplay-format fan fiction by Iarwain and Lintamande. If you enjoyed HPMOR but wished for more chaos, more math, and more questionable morality, then this story is for you! Our protagonist is Keltham, a young man from a world of advanced technology and science called dath ilan. He dies in a plane crash and wakes up in Cheliax, a country in a medieval fantasy world where the god Asmodeus rules over his Lawful Evil followers. Keltham decides to use his scientific knowledge and rational skills to bring progress and enlightenment to this new world, but he soon discovers that things are not as simple as they seem. His new friends have secrets, his new enemies have plans, and his new god has a twisted agenda. Join us as we follow Keltham’s adventures in this darkly humorous and epic tale of magic, romance, sex, math, and hell. This is not a story for kids or the faint of heart. You have been warned. askwhocastsai.substack.com