Grab the full wallpaper of Oscar of Hana Kimi at Hisaya Nakajo's site.
Sho Comi also has this reverse harem looking wallpaper. But you have to put the correct answer on the field box first. Help! Here's an alternate and larger picture of the manga.
UPDATE: Dec.1 Found the title: Ookami-san to Himitsu no Harem
Wallies are up until Nov. 30 only.