Are You a Devil? Fortunately, so Am I

"There are good and bad demons, and there are good and bad people." "Why should the devil die? I, Louis, also have family members that I want to protect... You should not attack my family members!" … Traveling to a parallel world, Louis has demon blood. I planned to be a good student and find a job to earn money after graduating from college so that my grandma Meliya could live a good life... His classmates treat him as an alien... Louis can tolerate this. An accident, Taking away the life of Melia, my only relative...