A Darker Shade of Magic (Shades of Magic, #1)
by V.E. Schwab, Victoria Schwab
I started skimming around the halfway point. Apparently I'm just not that into high fantasy anymore. It's not you, book, it's me.
Why did I have this tagged as trans-related? Someone being weird about Lila? It's really, really not. There's bisexual innuendo about a side character but the context is "he's a slut." Meh.