I'm scared, get me out of here!

As the "strongest" commander in the demon lord's army, you are feared and respected by all. However, there is a twist. You are actually a really weak human who got through everything by accident. Beating the Second commander in a duel last week? The guy just tripped and you happened to hit him while swinging the overweight sword around. The imposter you caught last time? You accidentally spilled wine on him which uncovered his disguise while eating. Let's see how this works out!