is a Japanese manga series written and illustrated by . It was serialized in Shogakukan's manga magazine Monthly Shà Ânen Sunday from May 2014 to September 2016.
Written and illustrated by , Dai-13 Hokenshitsu was serialized in Shogakukan's manga magazine Monthly Shà Ânen Sunday from May 12, 2014, to September 12, 2016. Shogakukan collected its chapters in four volumes, released from November 12, 2014, to October 12, 2016.