Tetrodotoxin

After being transported to another world and becoming the most powerful necromancer, Rhode unexpectedly finds himself back in his youth. In his original world, he was the good-for-nothing young master of the Morris family—a spoiled noble in everyone’s eyes. Little does anyone know that he has brought back with him the unique necromantic magic he mastered in the other world. As Rhode works to regain the full power he once possessed as a necromancer, he hides his true strength and begins turning the tables on those who underestimate him. His family, loved ones, and friends... Given a second chance at life, this time he will protect everything that matters to him and completely rewrite the fate of both himself and those he holds dear!