CrystalAris's manga / #Gender Bender(10)

Imagin a school where people disapear and you can't remember them at all, then find out that they 'graduated' ...by dreaming?! Its a fight/ battle with other students to graduate and you must find the key to pass through the graduation door, but it is not simply a battle. Oh no. these dreams will reveal even the students darkess secrets. P.S. The ending blew me away.