Synopsis: Princess Princess

What is the reason for Toru Kouno's exceptionally enthusiastic greeting at his new all-boys' school? Unbeknownst to him, the school has a covert system called "Hime (Princess)," where selected boys have to cross-dress at all school events. Kouno is unaware that he will soon become one of the chosen ones... The third volume features the one-shot story Train x Princess, whose concluding segment is featured in volume 2 of Train☆Train.