this one was a bit of a pain, and i have no idea what that exclamation is supposed to be. definitely take the translation with a grain of salt
@NumberOneFairy ひろっ is short for 広い (wide/broad/vast). I intended just to add it in and tweak the wordplay, and then ended up doing an overall polish. Most of it was pretty spot on.
Updated
Here we areLake at the foot of Youkai MountainI don't live here.So you live in here, Captain Murasa...
Wide!
Dunnn!
Big, ain't it?I imagine the real thing's a lot bigger, but...This is... the sea...!THE SEA-n of a lake..."うみ" means sea or ocean, while "みずうみ" means lake.