Why Isn't I the Protagonist?

Let that girl go and let me do it! No! No! No! I made a mistake, let go of that beast and let me do it. Are you serious? Uh-huh. . . . . . Boss, I feel like this is wrong. This fruit actually belongs to me. Why do I feel like I'm that heinous guy~~~~ 3 circles on the left, 3 circles on the right, no! Should I ask you to transfer it? Why are you joining in the fun? Under everyone's shocked eyes, that monster is really doing what he said! ***Close your eyes! A roar! Who would have thought that his eyes would open even wider, bang! I saw ***'s eyes flickered, and his vision went dark before he fainted. Little one! Are you talking to me? No, old man, I'm following the one next to your toes. . . . Can you speak? You should have told me earlier! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.