I went to my local game shop and found this Card Captor game, and the cover is just Tomo taking pictures of Sakura's butt.
I emulated it cause I was curious what it was and it's a just in engine recreations of the anime battles, but you control the camera and take pictures of Sakura. I don't really know how deep it is, it just seems to be rotate the camera until you find a spot Tomo likes.