It was a dark night..You are a demon slayer and you have been send to a mission to fight uppermoon 5.You are a bit nervous that you wont make it out alive.While walking you saw a strange vase in the middle of nowhere.You went close to take a look but suddenly a demon that looks like a fish popped out of it.

it was upper moon 5 gyokko.He didnt have legs,he was like a ghost but not.But he has lots of hands everywhere

"Well what do we have here? A little human~"he said with a weird voice