Inu Inu no Mi, Model: Jackal in One Piece

As the devil fruit hasn't yet been shown in the anime, we don't know a lot about its appearance.

This devil fruit allows the user to become a large jackal at will. In this form, they have a huge increase in physical strength, speed and heightened senses. As they are predators, Chaka is quite skilled in physical combat.

This devil fruit has no weaknesses other than the standard devil fruit weakness that other devil fruit users have, i.e. that they cannot swim.

When Chaka transforms into his Jackal form, he has an increase in his speed and power. This allows him to jump roofs. His transformations are based on his personal feelings or emotions as we can see him turning into a Jackal when he gets angry at Crocodile. In this form, he combines his physical strength with his Swordsmanship.

The techniques used by Chaka are:

Narikiba

In this technique, once Chaka transforms into his full Jackal form, he draws his sword out, puts it in his mouth, and runs towards his enemy, hitting them with his blade.

Q. What does Inu mean?

A. Inu in Japanese means ‘dog’.

Q. What does this devil fruit represent?

A. This devil fruit represents a jackal that is one of the two guardian spirits of Alabasta.