The Yujin Yujin no Mi is a devil fruit that allows the user to create a imaginary friend. The imaginary friend shape is determined by the user, but once it has been given form it can not be changed again unless it is destroyed. The toughness of the Imaginary friend is as strong as the users Will. If the users will is broken then the creature will shatter. If it shatters the user can reform it again. The friend can become visable or invisable depending on the users will at the time.