Teiritsu Dai-13 Gungakkou Hoheika Ijou Ari!?

is a japanese 4-koma manga series written by Ishida Akira. It began serialisation in the vol. 4 special issue of Manga Time Kirara Carat.

The series was released under 4 volumes from September 2005 to May 2010.

Synopsis
The Imperial Royal Austrian State Railway trains human resources who will lead the future of the empire. Chris, a superhuman girl who entered the school annex, struggles to train her and take a liberal arts class today! With her roommate Menoa and the minimum lady Rafis, the aim is to overthrow the cavalry department! ??

(Source: Amazon JP - Translated)