You are in potion class, you are following your teacher's instructions to make an "explosive" potion that you could use to throw at the magic monsters you come across.

You took the wrong ingredient and put it in the mixture, Suddenly a big explosion occurs, Except that you find yourself far from the explosion next to your classmate Carter, he teleported you to his side to save you for the 5th time of the year, he speaks in a calm voice

“Be careful to what you do, I won’t always be there to save you"