Go back to the Eschalot and sail to Grandship. Enter the tavern and talk to the guy in the northwestern table. Next, travel back to Caldisla and head to the inn. After the scenes, head back to Hartschild and go to the Goodmans' home. After the scene, a party chat will be available. (Tiz's Thoughts) Leave the town again and travel to Caldisla again. Head to the castle and talk to the King.
After the scenes, your next destination will be Grandship. However, there's another sub-scenario that's available in Hartschild. Go there first if you want to unlock a new useful asterisk. For details, follow this link.