First of all this work deserves more readers! It's a full on 10 for me but I can't make a decision on the wimp of emotion.
Igarashi really did a phenomenal job by crafting this on the basis of countless myths around the world and amalgamating it into a such extraordinary story. I really liked the way the story takes it place with a normal day-to-day life of a ordinary girl but suddenly this normal world transforms into a journey to the world of unknown and unheard for millennium. I really liked the suspense of how the character little by little enclosed the secrets of the world with countless myth and testimonies around the world. And the character like Angaled and Jim really did a great job by holding the story without interfering with plot, Igarashi did a good job by focusing very little on these characters though they hold the very focal point of the whole story.

And what to say about the Art, it was phenomenal ! I really did felt that the ocean came to me from millions of kilometers into my world of cubism. And the way he worked on the sea creatures is so extraordinary.

The reason why this work need more viewers because it isn't a normal day-to-day story of a normal being; yet the whole story follows the trails normal people, it deals with the Truth of the world, how everything is related to everything, how the so called 'Our world' is far for being to be call 'Our', it is 'Us' that belongs to this unnatural world, the very essence of the reason behind our existence.
Please try to dwell into the not-so-ordinary world of Igarashi and believe what the nature hold to it's core the Truth of the world.