I, Armed with an Invincible System, Venture into Another World

With two stars, you can level up by killing monsters and receive skills from the system. If you don't go out to kill monsters and become stronger, then go back to the academy to show off, and put yourself in danger. You won't wait until you are stronger than everyone else before coming back. At that time, you can't do whatever you want. If you are above the rules, no one will be your opponent, isn't it? If you have to have some strength, go back to the academy and pretend to be cool, but you can't kill the enemy, so you can wait for the enemy to take revenge.