Read Japanese, English Versions on Pixiv

This one is an awesome (full color!) work featuring Satori having some normal sex with her usual human breeding stock (seriously where do you apply for that position?).

Contains multiple stories from different artists. • Daitoshokan ni Youkoso! / Welcome to the Giant Library! (大図書館にようこそ!) by Johnny:Later reprinted in Touhou Project no Hon Soushuuhen