Goku Uniform

Goku Uniforms (極制服), also known as Ultima Uniforms, are a type of clothing worn by students at Honnōji Academy, created by the Sewing Club. Goku Uniforms provide their wearer with incredible superhuman powers. The strength and abilities of a uniform varies by the percentage of Life Fibers it is made from, represented by the number of star-shaped markings emblazoned on them. Satsuki Kiryūin administers uniforms to students based on their skills and capabilities, which also determines their rank within the school hierarchy.

Goku Uniforms are extremely tough but not indestructible, with weapons such as the Scissor Blade and Tsumugu Kinagase's arsenal designed to combat them, while a professional tailor, the Grand Couturier Nui Harime, was able to destroy them effortlessly by pulling out their Banshi. According to Nui, the Goku Uniforms have 'weak stitching' and are, in her eyes, 'crude', implying that they are nothing compared to her work.

Three-Star Goku Uniform
Three-Star (三つ星)uniforms are the highest-ranking Goku Uniform, made from 30% Life Fiber. However, they are not the maximum amount of stars available. When approaching levels of 50% Life Fiber, though, a regular student will lose their mind and rampage. The Three-Star Uniforms are worn exclusively by the Student Council's Elite Four. Each uniform's design and abilities are uniquely attributed to its wearer's default capabilities. Their colors range from pure white to light blue, and typically possess spikes and razor edges around the shoulders, sleeves, and/or unique accessories. When worn, they make their users completely immune to attacks from One-Star and Two-Star uniforms. They are also able to transform in a similar manner to Kamui and grant the users overwhelming and unique powers.

Two-Star Goku Uniform
Two-Star (二つ星) uniforms are granted to those who are club presidents. Their appearance and application varies greatly, with the main distinction of these uniforms being the reddish lining over many surfaces, sometimes over some parts of the uniform, and always over the Uniform's stars and manifested weaponry.

One-Star Uniform
One-Star (一つ星)uniforms are the most common variety of starred Goku Uniform, comprised of 10% Life Fiber. They are light gray gakuran uniforms with a single large four-pointed star symbol emblazoned on the center of the jacket, and a smaller white star on its collar.

No-Star Goku Uniform
No-Star (無星)uniforms are the weakest ranking uniform, and are completely ordinary school uniforms. Most of the Honnōji Academy student body, such as Mako, are shown to be dressed in these uniforms.