Jūgo's Clan

Unnamed clan whose members are born with the innate ability to passively absorb Sage Chakra Nature from the environment. This triggers uncontrollable physical transformations and violent rages. Orochimaru's Cursed Seals are derived from this kekkei genkai.

Jūgo is the only known surviving member. His condition is typical of the clan: involuntary absorption of natural sage energy leading to aggressive transformations. Orochimaru exploited Jūgo's body to isolate and replicate this ability in the Cursed Seals distributed to his followers.