First off, making a ban appeal one day after being banned would already be rejected.
Second, no, you're character name is not "Nomy Berserker" (its "Nomy Aceman") but whetever.
Trying to justify killing 5 peoples because you wanted revenge from a previous match is what we call "meta grudge" and that's bannable. That was the first and only excuse you gave in discord after being banned.
I will accept your realisation of your mistakes but don't end it with "i will report if anyone does". Sounds like you are denying your mistakes.
I'll end this by denying this appeal. Ill reban you for a week and it shall not be changed.
I'll note your username.