Kaku, Yuji: - Yuji Kaku debuted as a mangaka in 2009 with the one-shot "Omoide Zeikan" (Memory Customs), which won honorable mention in the 14th Jump SQ Comic Grand Prix. He went on to write several other one-shots before beginning his first series, Fantasma, which ran in Jump SQ from 2013 to 2014. Hell's Paradise: Jigokuraku is his second series.