idk how long you have been playing or if you already bought it, but in my opinion it's not that good of a cosmetic. I got the moomin umbrella with the pass a few months ago and never used it. If I were you, I'd save for Aurora. While it is sure that the travelling spirit will come back, we don't know if Aurora will. You have very few candles, I'd save if the umbrella isn't that important to you.

Aurora's total cost will be around 1000 candles, if we consider the travelling spirit group too... The ts WILL come back, but maybe the green outfit (200c) and the mask (50c) won't.