Ninja NonsenseNinja Nonsense.

Ninja Nonsense: The Legend of Shinobu (ニニンがシノブ伝, Ninin ga Shinobuden), also known as 2×2 = Shinobuden, is a Japanese manga series written and illustrated by Ryoichi Koga. The series subtitle is "The Nonsense Kunoichi Fiction". The manga was serialized in MediaWorks' Dengeki Daioh magazine between August 2000 and March 2006; the chapters were later compiled into four tankōbon volumes.