We finally fight the Vaen, but before that, Gwayn gives Glenn his powers except Kylian steals them from him. So the party fights the 8th True King: Kylian, before fighting the Vaen for good. The ending

This is the final stretch of the game. I did lose to the next boss though, so I went back to grind a little, and by grind I meant obtain a more powerful armor... Sometimes games that don't feature grinding