If Mirai had possessed Kaioken when he fought Kisame Hoshigaki, Kisame Hoshigaki would likely have died beneath Mirai's sword instead of leaving peacefully.
Moreover, it provided an overall twofold increase—not just in swordsmanship, but even in the power of his eyes.
Mirai himself possessed an eye-related passive skill that could double the power of his pupils. He had a feeling that if his pupil power were doubled, the Byakugan he used might even directly transform into a Rinnegan.
Even with God-tier spiritual power, Mirai himself could only exert 170 points of God-tier spiritual power. But after using Kaioken, he could directly exert 340 points of God-tier spiritual power.
In Mirai's eyes, calling such a skill divine was no exaggeration.
Mirai did not have enough credits right now, so he could only commit this skill firmly to memory and exchange for it later.
"Great Heavenly Dao System."
Mirai no longer paid attention to the skills in the dimensional system. After looking through the first few dozen skills, he found that the skills in these dimensional systems were not only limited, but also impractical. Although he had found Kaioken, that was not Mirai's purpose this time.
The list shifted slightly before settling. Once it became solid again, the contents above turned into the Great Heavenly Dao System.
"Physical Strength, Great Heavenly Dao System:
Starwood Body: Requires 100 Energy Points. Effect: After exchange, the host can gain a type of defense that is immune to attacks below medium endurance level while in its current state. Defense can be increased without limit by absorbing the energy of great trees.
(Note: Cultivating this body is difficult. During cultivation, you need to absorb some special trees. This body is naturally vulnerable to fire-based attacks and restraints.)"
When Mirai saw the first skill in the Great Heavenly