|Mukuro (Vongola Mist Owl)|
|Title||Gufo di Nebbia ver. Vongola|
|Cambio Forma||Daemon Spade's Devil Lens|
|Manga Debut||Chapter 240|
|Anime Debut||Episode 167|
Mukuro (or Mukurou) is Mukuro and Chrome's exclusive Box Weapon created by remodeling a Mist-attribute Mist Owl. It is created with Vongola's future technology. Through Cambio Forma, it becomes Daemon Spade's Devil Lens which have the power to see through any illusion and analyze the weaknesses of a target.
The Mist Flames it releases from its wings enhance Mukuro's and Chrome's illusionary abilities.
- Cambio Forma: Daemon Spade's Devil Lens: After Cambio Forma, Mukuro becomes a set of three monocle lenses capable of analyzing enemy weak points. The lenses also possess the ability to see through illusions.
- The owl's nickname, Mukuro, is a pun on the word, "Fukurou" (owl) and Mukuro, the character.
- The owl's name may also be spelled Mukurou to make the pun more obvious. Some translations, to avoid confusion, have more or less directly translated the pun, making it Mukurowl, taking away the confusion for non-Japanese viewers who don't understand the pun.