On March 3, 2014, a comedic spin-off series, , started to be serialized in Manga Box. After concluding its serialization in Manga Box, "Debusen" started to be released in "Young Magazine" on October 6, 2014 and ended on August 29, 2016. The first "tankōbon" volume of "Debusen" was published on December 5, 2014, and the ninth and last one was published on September 6, 2016. "Debusen" revolves around Mitsuru Fukushima, who plans to commit suicide after falling into debt because of cosplay practice. However, when he finds the dead body of a female teacher named Mitsuko Fukushima, who looks just like him, he decides to live her life helping to reform delinquent students.