UH - you might want to add a note in your aid about what happens if you try for more treasure and you fail. I didn't see it mentioned and I think it's an important rule that can get missed.
The (excellent) UH summary says about rumors: Place a shuriken here to spread one favorable rumor by discarding 1 or 2 treasure as indicated on the rumor. Take the rumor and place it faceup in front of you.
However, the rules (page 8, lefthandside, downmost box) says: "After you buy a Rumor card, you may keep it face down until the end of the game. Rumor cards and Dojo cards are the only hidden player information.