If you are fan of the Ultimate Muscle or simply Kinnikuman then you might just like this. The co-director of this series is the same person who wrote the original series of Kinnikuman, Yude-Tamago(ゆでたまご）. In gender bender form of retelling the original story gives new fresh idea while reliving back to the classic concept. The scenes you were familiar with are unexpectedly changed giving a comic reliefs. This manga is an ongoing series that each chapter is posted monthly on Ultra Jump website. http://ultra.shueisha.co.jp/serial/1/