Naito Naito no Mi

Introduction
The Naito Naito no Mi is a paramecia type devil fruit that allows ths user to create a purple gas-like energy.

Appearance
The Naito Naito has no distinctive shape, as it 'moves' constantly, like a gas would. The core, which is a perfect sphere, is the only part of the fruit that remains distinct.

Usage
The user can create limitless amounts of a purple gas-like energy.

Strengths
At first the energy created by the Naito Naito no Mi may seem weakless and harmless, but if applied correctly can be quite strong. The energy causes realistic nightmares on those who sleep if they absorb the energy, and causes drowsiness in those awake. The energy also seems to be slightly toxic, as those affected by it tend to feel ill.

The nightmares themselves are special in their own right. The energy reacts according to the brain waves sent by the nightmare-riden brain, causing physical damage if in the nightmare, the affected is injured. This makes it a perfect hidden weapon, as it leaves no evidence behind. If the user keeps in contact with the affected, then they can also enter the nightmare and effect it, for better or worse.

The more energy someone absorbs the worse the nightmares, or drowsiness gets. The application of Busoshoku Haki crystalizes the energy.

Weaknesses
The user suffers from standard Devil Fruit weaknesses. Additionally, nightmares can only be caused when the opponent is asleep. Another weakness is if the affected realises that they are dreaming, then they might be able to weave the nightmare into an normal safe dream. They can also affect the user in this way if he/she enters their nightmares. Similarly, other people can crystalize the energy with Busoshoku haki, meaning the user has to be more careful if they want to silence someone.

Attacks

 * Enter the Realm - A phrase commonly uttered when inflicting a nightmare on someone.
 * I shall follow - Another phrase commonly spoken when the user enters a nightmare.
 * Realm of ... - While inside a nightmare the user plunges the opponent into a worse nightmare based on their fear. The name of the attack changes depending on the fear in question (for example if the affected is afraid of spiders the name would be Realm of Spiders).
 * Nightmare Sword - The user crytalises the energy into the shape of a sword.