The storytelling concept was a lot of fun! I always enjoy seeing how people imagine Touhou OCs and similar things, and the same goes for the crystal ball tsukumogami here.
I enjoyed the graphics throughout the scenes and characters. One of my personal favorites is Daiyousei's; it's cute and underscores the wholesome factor. On the other hand, I didn't get to see Yuugi's. Judging by Megapig's comment, I presume that the scenes that would play on the last day end up failing to run because I finished the game at the same time.
I also struggled with the way that the cards are arranged & displayed. The cards seemed to regularly overflow in their area on the layout, resulting on a scroll bar appearing. Aside from the UI issues, the gameplay itself was quite interesting! Rerolls made for good QoL, the card variety was fun (especially between different characters), and the buildup to winning via stat upgrades made for an interesting gameplay loop.
Overall, I enjoyed the game quite a lot! Well done!