The Mera Mera no Mi is a fictional Devil Fruit from the anime and manga series One Piece. This fruit grants its user the ability to control, create, and transform into fire. It is classified as a Logia-type fruit, which means the user can become intangible and avoid physical attacks by transforming into their element. The original user of the Mera Mera no Mi was Portgas D. Ace, the adopted brother of the main character, Monkey D. Luffy. After Ace's death, the fruit was later consumed by Sabo, Luffy's other brother, who also possesses the ability to use Haki, enhancing his combat skills.