A School Frozen in Time (Japanese: 冷たい校舎の時は止まる, Hepburn: Tsumetai Kōsha no Toki wa Tomaru) is a Japanese novel series written by Mizuki Tsujimura. It was published by Kodansha in three volumes, from June to August 2004. A manga adaptation, illustrated by Naoshi Arakawa, was serialized in Kodansha's Monthly Shōnen Magazine from December 2007 to April 2009 and later published in four tankōbon volumes. The manga is licensed in English by Vertical. Source: Wikipedia (en)