Sistema C.A.I.

All Box Weapons in the Sistema C.A.I.

For Chapter 192, see Sistema C.A.I. (chapter)

For Episode 115, see Sistema C.A.I. (episode)

For Volume 21, see Sistema C.A.I. Arrives!

The Sistema C.A.I. (ＳＩＳＴＥＭＡ(スィステーマ) Ｃ(シー).Ａ(エー).Ｉ(アイ)., Sisutēma Shī Ē Ai?) is a set of 16 Box Weapons that function in synergy and can combine and quickly interchange between each other. Short for Sistema Cambio Arma Istantaneo (カンビオ・アルマ・イスタンタンアオ, Kanbio Aruma Isutatanao?, lit. Instantaneous Armament Change), the set is composed of 4 Storm-attribute Boxes, 2 Lightning-attribute Boxes, 4 Rain-attribute Boxes, 2 Sun-attribute Boxes and 4 Cloud-attribute Boxes. Along with the Skull Rings, Gokudera's battle gear has all of the Boxes around his waist.

Description

Initially, it was sealed in the form of a puzzle involving the Boxes and the Skull Rings that came along with it. Once a certain Box was opened, it would release one of the Skull Rings along with its contents. Said Ring would then be used to open a Box of its corresponding attribute, which also had another Skull Ring inside. This requires not only the knowledge of the order of opening the Boxes, but also possesses the Dying Will Flames required to light up the rings.

Gokudera's Vongola Box Weapon integrated the Sistema C.A.I. and the Gatto Tempesta in its upgrade. All of the 16 Boxes of the Sistema C.A.I. are stored inside of the Vongola Box. When opening the Box, only the Gatto Tempesta ver. Vongola is released and the other Boxes are placed unopened around Gokudera's waist.

Components

• Contact Lenses
• Skull Rings
• Flame Missile

Storm-attribute Boxes

• Bone Loops
• Flame Arrow
• Storm Disc
• Gatto Tempesta

Rain-attribute Boxes

• Rain Tube

Sun-attribute Boxes

• Sun Cartridge

Cloud-attribute Boxes

• Cloud Tube

Lightning-attribute Boxes

• Lightning Tube

Trivia

• Gamma theorized that this was an original work created by Innocenti due to the aesthetics behind the Boxes' design.
• Gokudera was apparently able to bring the Sistema C.A.I back to the past because he used the Bone Loops and the Flame Arrow when the Vongola Famiglia were first attacked by the Simon Famiglia during the Inheritance Ceremony. Later, the Sistema C.A.I. was integrated into Gokudera's Vongola Gear Cambio Forma.