Note: It took some time for me to get back around to finishing comments on the jam games. Pardon the late comment!
This one was excellently put together, between the collection of small stories involving Kogasa, the creative blacksmith wordgame, and the cute, colorful style!
Although I don't have much to add that others haven't mentioned, one of my favorite parts was the cute portraits. I heard about some of the development in the Touhou game dev Discord, and really enjoyed seeing the characters' outfits come together.
(I hear that Nue's outfit was particularly fun - and it shows across all of the characters!)