I like how you designed around the limitation by using the NPCs' dialogue and only one item limit. The idea of choosing a gift for a wizard to fix your house without knowing the consequences is neat! Something that you might want to consider adding would be a time limit, so that the player has some tension to decide which item to pick, making their choice a little bit more hectic and chaotic. Also maybe a way to track all the endings you've accomplished out of all of them would be a nice quality of life addition.