I see in the description that the author states: "There will be 3 routes but for now I focus on 1 that is oriented towards subby people".
Has the author said anything about what the other routes are going to be based on?
From what I've seen in the game one will be about being part of a team for escaping and the other will being on the side of the captain
Hmm, but I went through 3 endings
you're probably talking about the 3 endings with Tavi they are talking about different routes with different characters.