Looking for an obscure Touhou Doujin

[panzerkampfwagyu]

Think 7-9 years ago, I read a Touhou Doujin on Mangahere that was essentially an esoteric artbook with a bunch of elegant looking pictures of Sanae(At least I think it was her) most notably though was a test where the last question was an essay that gave 50 out of 100 points.
Either the title or the question were happiness related.
Would be neat if anyone could help me here, mostly interested in getting that test again.

 

[panzerkampfwagyu]

Found it thanks to having the test stored on my hard drive, it's https://mangadex.org/title/afa2e95b-46aa-48ae-8e32-0c490f13f9f8/touhou-seirensen

 

[PantsMan]

Thanks for sharing. You got me curious with that description.