Identify a game what i played a while ago [SOLVED]

[ChaosGhost]

story was somewhat MC is a dragonbattlemage or something what fell from a battleship and strand on a island ,in a school he meets some girls/milfs and he protects them from a hostile group,then he finds a stranded fishgirl/meermaid he helps her to get to the river so she can swin in the ocean back...
was a bit grindy but the backgroundstory was great

 

[CyricAdon]

Secret Island?

 

[ChaosGhost]

yeah thx this was it...