The World God Only Knows, Volume 20 (The World God Only Knows #190-200)

After stopping Vintage, Keima has finally returned back to his old life of gaming as his mother, Mari, also returned from America. Haqua has regained her rank in the Runaway Spirit Squad while Nora has received her share of fame, being promoted to head district chief. But as Keima arrives at school, a strange event occurred to Keima. Each time he enters, the school setting would be warped, such as the school turning into an all-girl's school or all the Goddess hostesses ambushing him with proposals. And each and every time, at the end, he would find himself back at the gate entrance.