- "Kuku" is short for Kukku (クック?), the Japanese pronunciation of "cook".
- In the official English translation, it is called the Cook-Cook Fruit.
Strengths and Weaknesses
With this fruit, the user has easy access to food to feed themselves and others just by transforming any object into food. The user does not even need to cook the food. The user can also turn an object into food in order to make it less dangerous or otherwise more useful.
However, while the food created by the user can provide nourishment, it apparently does not taste good, as Big Mom remarked, though that could just stem from Big Mom's very demanding palate. Other than that, the user is still affected by the standard Devil Fruit weakness.
Sixty-three years ago, Streusen was seen making meat out of a log by cutting it, and was immediately able to eat the meat. Streusen is very skilled in using his Devil Fruit, as he was able to transform an entire castle into food in an instant.
- Veränderung Gourmet (
変化食Feaenderun Gurume?, meaning "Transformation Food"): Streusen stabs his sword into an object and transforms it into food. It was first used to change the collapsing Whole Cake Chateau into a real sponge cake with whipped cream in order to save the people on it and the residents of Sweet City below from the debris. Veränderung is German for "change". This technique is called Gourmetamorphosis in the VIZ manga.
- This fruit bears similarity to several other Devil Fruits:
- Both this and the Ato Ato no Mi can transform everyday objects according to the user's imagination.
- The fruit is similar to Kanjuro's unnamed Devil Fruit as both can create foodstuffs.
- The fruit can be considered an inverse of Tama's unnamed Devil Fruit, in that it instead produces food from the user's own body rather than from their surrounding environment, the user is limited to only producing one kind of food (mochi) instead of many, and the food produced, while delicious, is not nourishing.
- This is the first and so far only Devil Fruit with a name composed of a single katakana. In this case, Ku (ク?)
- One Piece Manga and Anime — Vol. 86 Chapter 868 (p. 4) and Episode 838, The powers of the Kuku Kuku no Mi are revealed.
- One Piece Anime — Episode 832, Streusen uses his power on the wedding venue floor to bring out the wedding cake.
- One Piece Manga and Anime — Vol. 87 Chapter 872 (p. 11) and Episode 843, Streusen saves the tea party attendees and Sweet City by turning the falling Whole Cake Chateau into sponge cake.
- One Piece Manga and Anime — Vol. 87 Chapter 872 (p. 15) and Episode 843, Big Mom comments about Streusen's newly made sponge cake.