How did you get the Angel Leaf extract? I did all of his quest until the Glowing Idea is the only one left. I kept returning to him everyday but the Angel Leaf extract quest is not appearing.
all of his quests seem to be repeatable, and I got it the 2nd time the angel leaf extract quest appeared, first time I didn't get anything. I guess just wait a few days and come back to him. (I also increased my "like" and "love" level with him, not entirely sure if that has anything to do with it, I doubt it though.)