My Heroic Path Has Gone Astray

"Teacher, I can't hold back the ancient power in my body!" "Disciple, calm down. Is your dream of becoming a hero shattered?" "No, after trying it once, I have never felt so happy." "Forget it, then you can inherit the power of complaining as a teacher." ... "Lord Adens would be perfect as a hero, if only he didn't like to complain." "Adens, I beg you, please stop talking!" This is the story of a perfect heroic embryo, who is obsessed with the power of complaining, and goes astray as a hero in an adventure in a fantasy world.