I urge you to give the "six-eyed" Subaru a try; the reaction to it will be fantastic.
Subaru must prioritize upgrading their Intelligence (INT) stat in the Solo Leveling system. In the world of Tensura, doing so is critically important for three major reasons: ## 1. Preventing Brain Overload from the Six Eyes
The Six Eyes constantly pumps millions of data points per second into the user's mind (perceiving Magicules, sub-atomic particles, and magic laws). In Jujutsu Kaisen, Gojo had to wear a blindfold to minimize this extreme strain.
* In this system: Raising the INT stat scales the brain’s processing capacity, mental fortitude, and data absorption. Without a high INT stat, the character's brain would physically melt or collapse under the infinite data streaming from the Six Eyes.
## 2. Maximizing the Mana Pool (The Shadow Army's Lifeline)
In the Solo Leveling system, every single point allocated to INT directly increases the Maximum Mana Pool and boosts mana regeneration speed.
* Even though the Six Eyes cuts energy costs down drastically, maintaining a grand army of hundreds of thousands of shadow soldiers, naming them, and upgrading their ranks (like Igris or Beru) still demands a massive baseline of raw spiritual and magical capacity. High INT ensures the user's mana container is vast enough to sustain an immortal legion.
## 3. The Core Requirement for Evolving into an Ultimate Skill / Manas
In Tensura, skills do not evolve through physical strength; they evolve through the power of the soul, willpower, and computational capability.
* For the Six Eyes or the Shadow System to break past their limits and evolve into a god-tier Ultimate Skill (like Astraeus) or a sentient Manas, the soul needs maximum computing power. Pumping points into INT is the literal statistical translation of making your soul advanced enough to trigger that divine evolution.