After My Brother Died, I Became the Strongest

In this world where monsters are rampant, every newborn will have talents that can compete with monsters. But in comparison with his parents and elder brother, the protagonist's already useless Sky Thief makes others laugh even more. "It's incredible that this kind of waste actually lives in the same world as us." His parents also regarded him as the biggest stain in their lives. Only his genius brother, who is ten years older than him, truly loves and protects him. But my brother's death came without warning, like a summer shower. After that, people gradually discovered that he was a complete madman. A pervert who curses his relatives; an unscrupulous villain; A bad guy who has to save the world in order to fulfill his brother's last wish.