Buchimaru Chaos

Buchimaru Chaos (斑丸ケイオス, lit. "Spotted Chaos") is a manga series by Tsutomu Oono. It was serialized in Young Animal.

Plot
A certain pair of man and woman had committed a grave sin capable of shaking the country... that is "god killing"!? The strongest female ninja and the perverted disciple, a god killing survival!!