Houkago Shounen Hanako-kun

From Yen Press: The ghostly Hanako-kun and his mortal assistant, Nene Yashiro, usually have their hands full resolving various supernatural incidents in Kamome Academy, but how do they spend their time when they get a break from all that? Come and watch the characters of Toilet-bound Hanako-kun play games, get sick, change genders, and discover world-shaking secrets during their laid-back after-school hours!