This thing is definitely not a fish!
Fish can't bite ghosts, let alone hurt them. Could it be that this fish... is also a ghost?
Hell!
The Water Ghost's head was buzzing, thinking, aren't I supposed to be a rare creature?
Without some fateful coincidence, out of hundreds of thousands of dead, you wouldn't get a single ghost. How did it suddenly become so worthless? Even fish can turn into ghosts, and in groups no less.
"Wait! Could it be the thing that was burned earlier?" Instinctively it counterattacked, finding that the water flow had no effect on the school of fish, but the energy it emitted could shatter the Swimming Fish. "Is it burnt paper? No, paper effigies!"
After all, once a person, the Water Ghost, though never having seen it with its own eyes, had heard stories in life about papermen made by mysterious people that could move after being activated with chicken blood.
Today, witnessing it firsthand, it felt a chill of dread.
