Demon Lord Teleported From Another World

[Don't expect MWUAH kind of writing(as in good quality) I do this as a side hobby when bored and do it when I can. I might release a couple a day, I might do one everyday. I just do the bare minimum needed to make things make sense. I have written other works(although one more than the other to be honest) and this is just another one that pops in my head recently. To the synopsis!] Daniel Wu is a 16 year old student at Coridale High School and was stricken with Kaden's Degenerative Disease. A Disease which appeared relatively 30 years ago, and since then has no cure. It causes a specific part of the human body to degenerate and rot away over time varying from years, to months, to days. As a result of this uncurable disease, many of those who are stricken with it get posterized by their peers. Called "Kadies" named after the first case Kaden Ross. There is no indication of whether it is hereditary, as it is still new Could it be the result of a weapon, or old disease that had been dormant. But it didn't matter where it came from, since being stricken at age 13, he has endured 3 years of mistreatment and discrimination by former friends and commoners. He with only a short time left of his life, has given up on hoping for a future. His father, a brilliant man, is busy with another project to focus on finding a cure, and him, slowly loosing his mind decides to volunteer for Project Protokin, a project with the intention of developing teleportation. As if he dies in the testing, so be it, if he lives, then he contributed to the future of technology. The project in hopes of cutting the cost of time and even resources needed for transporting goods across the world. However, a incident occurs, and now Daniel is unsure where he has been teleported. Also has an AI in his head. She will never shut up. Character in the cover is Kuklo from Attack on Titan Before the Fall. Basically the first Eren Yeager. I only recently re-read the manga(should be adapted into a anime in my opinion *cough*) and decided to use his face as the character.