The Ketsuryugan is a dojutsu kekkei genkai which appears in certain individual of the Chinoike clan. The Ketsuryugan is recognised by its reddish colour of eye giving a special appearance for the users of this dojutsu characterised as holders of eyes as red as blood. The Ketsuryugan confers the power full genjutsu casting abilities. It’s power earned it comparison to the 3 Great Dojutsu.
The Ketsuryugan also gave the users the ability to manipulate the users blood or more accurately the iron in the blood allowing the user to not only manipulate their blood but any liquid with the high iron concentration.