Y/N a 16 year old boy who was at school with his classmates was suddenly transported into the world of Azur Lane. he and the others was ask to join them and fight against a alien races known as the Zin many of them agreed all except Y/N. he was allowed to live in the city but what they all don't know is that Y/N have been given the power to create anything he wants. Thanks to an ancient god that became tired of living and wish to pass away now that being said Y/N was chosen to become his successor. thus leading him to creating the Siren and he fights against the Zin who wants to enslave the whole world.