Valkyriedrivemermaid Stories

tadashi has always been special but his abilities even for a liberaters having multiple abilities but his use of what he calls the "travelers light" are the most dangerous disclaimer this will be deviating from the main story since I wanna do something fun

Y/N L/N is a teenager who was washed out on the Mermaid Island, remote island used as a quarantine area for those affected by the A Virus. Catching the attention of Charlotte Scherzen, one of Island's most high-ranked persons, he was allowed to live there because she thought to use him as a weapon. However, it's not gonna be easy for her, because Y/N sees through her attempts and prevents her from doing it, as well as trying to make her better person. Which side will win?