is a Japanese shonen manga series written and illustrated by Haruichi Furudate. Individual chapters have been serialized in Weekly Shonen Jump since February 2012, with bound volumes published by Shueisha. The series was initially published as a one-shot in Shueisha's seasonal Jump NEXT! magazine prior to serialization. As of December 2015, nineteen volumes have been released in Japan. The manga has been licensed in North America by Viz Media. An anime adaptation began airing in April 2014, which has been licensed for digital and home release in North America by Sentai Filmworks. The second season of the anime aired in October 2015 .

is a Japanese shonen manga series written and illustrated by Haruichi Furudate. Individual chapters have been serialized in Weekly Shonen Jump since February 2012, with bound volumes published by Shueisha. The series was initially published as a one-shot in Shueisha's seasonal Jump NEXT! magazine prior to serialization. As of December 2015, nineteen volumes have been released in Japan. The manga has been licensed in North America by Viz Media. An anime adaptation began airing in April 2014, which has been licensed for digital and home release in North America by Sentai Filmworks. The second season of the anime aired in October 2015 .