Hades (SR)

Codename Hades (ハデス Hadesu) the secret weapon of Saints Row and the user of the Kami Kami no Mi, Model: Hades. It has been locked within the prison for as long as it's been there, feeding on the negative emotions of its prisoners.

Devil Fruit
Hades is the user of the Kami Kami no Mi, Model: Hades, a Mythical Zoan-class Devil Fruit that allows it to turn into the god of death. In this form, it absorbs negative emotions and uses it as dark energy. The principle is the same as that of the Darkness Style, but instead, uses others' emotions as a source, making it a natural enemy of dark knights.

Hades is also granted immortality, and is immune to aging. However, it is not immune to death itself, and can still die from a variety of factors such as illness, malnutrition, loss of blood, etc.