Princess PrincessPrincess Princess; Tore X Puri; Train Train X Princess Princess; Train x Princess; Принцесса, принцесса; プリンセス・プリンセス; 公主.公主; PuriPuri (TSUDA Mikiyo)

From DMP: Why is Toru Kouno receiving such an overly warm welcome at his new all boy's school? He has yet to discover the secret system called "Hime (Princess)" in effect at the school. Boys who are chosen have to dress up as a girl in every school event! Little does Kouno know that he would be the chosen one... -- Contains the story Tore x Puri (Train x Princess) in volume three.