The Six Eyes (
While any member of the Gojo family can inherit the Limitless, only those who also possess the Six Eyes can truly master the technique's power. No two bearers of the Six Eyes can exist at the same time.
The Six Eyes provides the user with vast perception and immense brain processing power, allowing them to precisely manipulate the sophisticated powers of the Limitless down to an atomic level. Each of the Limitless techniques requires this type of complex cursed energy manipulation, making the pairing of the Six Eyes crucial to utilizing the Limitless' cursed techniques to their maximum potential.
The Six Eyes processes the user's cursed energy incredibly efficiently. So much so that the amount of cursed energy lost when the user activates a cursed technique is infinitesimally close to zero. Due to this, a proper Six Eyes user will never run out of cursed energy.
The mental prowess of the Six Eyes can turn one moment in reality into well over a minute's worth of time within the user's brain. This works well in tandem with the users enhanced sight, allowing them to analyze and calculate the positions of everything within view instantly. A sorcerer who possesses the Six Eyes can see things for several kilometers away, easily able to distinctly tell apart different figures within their vast range.
The Six Eyes allows the user to see cursed energy in extreme detail. As such the user of the Six Eyes is able to see the flow of cursed energy , which in turn allows them to read another person's cursed techniques as well. Additionally, the Six Eyes can differentiate between different types of cursed energy and help the user identify a person based on it.
The Six Eyes can be used to set the Limitless' Infinity ability to automatic. This allows the user to instantly read an incoming projectile danger using it's mass, speed, and shape among other factors. By simultaneously using the Six Eyes to calculate a reverse cursed technique automatically, the user can also keep their brain fresh at all times. However even with the use of a reverse cursed technique, the Six Eyes will tire out its user a bit more easily unless the eyes are covered.
The Six-Eyes allow the user's eyes to function like a high resolution camera even blindfolded. So in the long term, the user has to cover their eyes with a blindfold, dark sunglasses, or bandage wraps among other things to reduce its drawbacks. For example, Gojo's sunglasses are too dark for a normal person to see. Objects that lack cursed energy can be discerned through the blindfold by reading the residuals and flow of the cursed energy surrounding them. However, in order to utilize advanced Limitless techniques such as Hollow Purple and Unlimited Void, the Six Eyes needs to be fully uninhibited, allowing the user access to their full power.