*EDIT* oooh Etigoya's guide ... i keep forgetting to check hongfire for walktrhoughs lol
*EDIT 2* Btw if anyone cares, heres my commonevents file. it should let you get the 2nd merchant scene and 3rd boys scene in the castle town. i forget name lol. The one you ride the ship to. both events were impossible to get due to being over the cap on desire, one being 120 the other 180 =(
if you mean the loli with the big sword, shes part of main storyline.
Gotta talk to someone in the bar and find a red head in bottom of west side of port town to get started. then you exit and a new area should pop up. enter it and make your way through, once at the end you should take a boat to the castle town and it should progress from there.
I finally got around to beating this game(I played the games that came out before it) and I'm glad I did because there are a bunch of reoccurring characters in this series, gives them some fun context when you run into them.