The Tsuku Tsuku no Mi is a Paramecia-type Fruit that allows the user to haunt the dreams of a sleeping victim and control them from within. It makes whoever consumed it a "Haunt-human."
The main strength of the fruit is that when the user is within the dreams of their victim, they can manipulate reality as they see fit and control the entire sequence of events within their dream. They can also control multiple dream sequences at once by rooting themselves into the minds of several victims.
So far, there is no known weakness to the fruit aside from the standard Devil Fruit weakness.
The consumer of the fruit can control the sequence of events within their victims dreams.
The Tsuku Tsuku no Mi Devil Fruit, and this article was created by Subrosian.