Double-JDouble-J.

Double-J (Japanese: だぶるじぇい, Hepburn: Daburu Jei) is a Japanese manga series written by Eiji Nonaka and illustrated by Maru Asakura. It was serialized in Kodansha's shōnen manga magazine Weekly Shōnen Magazine from July 2009 to October 2011, with its chapters collected in six tankōbon volumes. A four-minute-long 11-episode anime adaptation, produced by DLE, was broadcast on Nippon TV as part of their Yuruani?