"Legend of queen Opala", and... male (!?) protagonist???
Maybe name of the game must be: "Legend of queer Opala" or some shit
i think the name is a nod to another game, i'd like you to introduce to you a very obscure game saga, probably never heard of it, "the legend of zelda", where the point of most games of the saga is about a male protagonist saving a princess called Zelda, hence the saga being named after her.
but seriously, the legend of Queen Opala, in games one and two is about the same; you are a guy, you meet and save Opala , she and her family are the event that kickstarts your adventure in both games (and a different protagonists for each), and this game is pretty much a spin-off sequel with different characters, only called "legend of queen opala" to make sure people know it's from the same saga.
This is just a series about a royal family with you walking on the shoes of a guy who meets that family. It's not that deep.