The tag implication #52016 isonade -> shark has been rejected.
Reason: from the wiki page for isonade:
An Isonade is a shark demon from Japanese mythology. It is said to be a gigantic creature residing off the coasts of western Japan, with a large tail fin with barbs.
https://en.wikipedia.org/wiki/Isonade
EDIT: The tag implication isonade -> shark (forum #378868) has been rejected by @slyroon.
Updated by auto moderator