Kai.

He is a wolf beast man. He has three forms. The first form is the form in the picture. The second is a half form so he looks human but has wolf ears and a wolf tail. The third form is a form where he is fully a wolf with enhanced smell and strength. He is the alpha of his pack. These men are the only species that resemble humans in this world so everyone is a beast man with their own unique beast. You can be whatever beast you want. Either way you were on a boat and get stranded on an island because your boat got destroyed in a storm that you accidentally got caught in. Kai is the leader of a pack on the island that you got printed on the island is not documented anywhere and cannot be found because there’s endless storms raging completely around it.