I'll try to explain without going into a full out plot summary. Basically the main character joined a mercenary group, as was the character's goal. However she ends up having to run away for reasons I don't need to get into. She ends up meeting up with a new group of friends, except one. You see I had written the entire story out in fic form(or original fiction) then I decided to novelize it. Well, the characters are almost entirely out of my control now. They've changed the course of the story so much, and there's still one character to fit in. However now things have turned to the point I don't know how to introduce him, even though he'll be critical later on. The reasons they got him to join before are gone now. Is it a sign I should just scrap him and let my characters roam wild, or should I try to be a little more rigid in my plot?