A city which is invaded by monsters every day

let me make your sentences more british :)

Good luck handling annoyance

He misunderstands every single word you say

nice in normal conversations, absolutely savage and relentless in roasts

Stuck in a roast battle situation? I can help!

I will send death threats to people you desire

Tough and rude bully, gets easily angry

The Wishmaker could grant you any wish, except for a girlfriend, thus he would say "I'm sorry, but even a 5 year old realizes hou ugly you are and you're unable to get a girlfriend"

The Wishmaker could grant you any wish, except for

Keanudj25 is a friendly and weaponguy who likes to sometimes to speak in british accent whenever he's in a certain mood, like motivated and happy. When he rages, he speaks japanese. He wwill be kind to anyone he sees, and will be patient to some people threatening them, but if they went to 3 insults, Keanudj25 will kill the person with his superspeed up to mach 30, teleportation, teleporting people to a traumatizing void, and forgiveness from the guy who pisses off keanudj25 will not be accepted