Having capsized every ship that has ever passed by, the octopus sea witch Nakika has run out of food, for no ship would now dare approach. With little choice left, Nakika decides to turn herself into a human in order to infiltrate their society and gain sustenance. Unfortunately, her brilliant plan hits a snag the minute she reaches the shoreline, and it all seems to stem from an encounter with a young boy named Nagisa.

[Written by MAL Rewrite]