Depending on the first few (and only) choices in the game, you can either keep the MC's given name, or change it to one of your (their) liking, along with choosing their preferred pronouns. If you do decide to alter their identity, the game remembers this, and certain characters will interact with the MC a little differently depending on their choice. Some readers feel as though this is a metaphor for trans people and trans self-expression (whether it remains a metaphor or is further expanded upon later in the story is yet to be seen), so I added the tag to account for them. Other than that, depending on the MC's chosen pronouns, certain characters' infatuation with them can be seen as very, very softcore LGBT romance, though that is not the novel's main focus. I do admit that the LGBT themes are a lot less important to the plot than in most other FVNs, but I still think the tagging is appropriate for the reasons outlined above.