The Cannon Fodder Villain Became a Gang Favorite and Became a Boss

A normal person dressed as cannon fodder for the villain's family originally wanted to use psychology to prevent his family from committing suicide, but was misunderstood as the ultimate madman and was forced to become the leader of the villain, leading the family on the wonderful path of "falsely destroying the world, and truly building a homeland". Since you insist on being the villain, I will lead you to be the most efficient one.