I don't belong to such a stupid world

So... I guess everything started with an accident... It's hard to explain, but this is how I started from being a normal human to the strongest person in another world. But I don't have a magical talking weapon, or a strange ability... I don't have any bloodline or system. I can say that it is everything thanks to my shitty luck of being respawned into a idiotic world with a gift I never really wanted...