Dojima tried to assist his rescuer, kicking to propel them forward, but well, human legs could only do so much compared to a literal fish tail.

Upon hitting the surface, Dojima took a deep, involuntary breath-- and then coughed, as salt water got right down his throat from the swirling water, damnit it...

It took him a minute or so to finally, get to a point where he could talk, but the wind was howling--

"W-well, enough, in calmer water..."

He'd gone swimming in the river and in the ocean before, but this was an entirely other level for him.

"We, need to, keep moving--"

Regardless, he'd do what he could to keep himself above water.