Here is the full list of all 15 WoW Hentai 2 achievements.
Complete level 15.
Complete level 14.
Complete level 13.
Complete level 12.
Complete level 11.
Complete level 10.
Complete level 8.
Complete level 9.
Complete level 7.
Complete level 6.
Complete level 5.
Complete level 3.
Complete level 4.
Complete level 2.
Complete level 1.