Nefi Nefi no Mi

The 'Nefi Nefi no Mi is a Mythical Zoan-type Devil Fruit which grants the consumer the ability to shift between a hybrid, and full Nephilim. This fruit was eaten by young Mtakatifu Kevu.

Etymology

 * "Nefi" is derived from "Nefirimu", which is the Japanese word for Nephilim.
 * In the Viz Manga, 4Kids and FUNimation dubs, it is called the Nephilim-Nephilim Fruit

Appearance
The Nefi Nefi no Mi is a small orange fruit which highly resembles an overturned physalis peruviana. The fruit which has a protective outer layer, with a fallow, and spherical berry in the middle. The protective layer is edible, along with the rest of the fruit. The outer later is covered in the Devil Fruit-defining swirls, with the curled stem protruding from the top. Upon being bitten into, the inside was revealed a cold gray color, and Kevu described the texture as "gummy".

Strengths and Weaknesses
The main strength of this fruit is that it allows its user to transform into a Nephilim, a being that is the offspring of a demon and an angel, thereby making this fruit a Mythical Zoan. The unique aspect of this fruit compared to others is that it allows its user to transform between four forms, rather than three at a base level. This being due to the fact that a Nephilim in itself is already a "hybrid", so the user can directly access half of the power in their Man-Beast form, such as being half man, half demon, or half man, half angel. Depending on the form, the user gains different abilities. At the begining, Kevu was entirely reluctant to use this fruit, seeing it as a curse from Shetani, the Giza version of a devil.

Aside from this, the fruit grants the user the standard powers of a Zoan, such as enhanced physical capabilities. Another unique thing, however, is that the fruit itself has more than one classification as far as Zoans go. While some Zoans are considered to be both mythical, ancient, or carnivorous, this fruit dependent on the speific form, an be classified as both Mythical, and Carnivorous, such as when Kevu accesses his Demon hybrid state.

The weaknesses of this fruit are entirely dependent on the form he is in. An example of this is when Kevu fought Iskandar. Despite Kevu achieving an advantage when transforming into his angelic form, Iskandar still possessed a mythical Zoan classified under the "demonic" category, thereby doing more damage to Kevu, while Kevu did more damage to him. In this form, he also takes more damage from darkness, or shadow based attacks, making him succeptible to the Kage Kage no Mi, and the Yami no Mi. While in his demonic form, Kevu takes more damage from holy Zoans, as well as light based attacks. Aside from this, the standard weaknesses apply.