After Practicing Domineering for Ten Years, I Realized That There Are Demons in the World

After being blind for ten years, I discovered that there are monsters in the world. Jiang Ye traveled through the world of demons and became a child who was born blind and lived at his aunt's house. The starting binding system activates the Fujitora template of the world of navigation. In order to obtain a better quality of life, he had been practicing the Haki of Knowledge and Color day and night for ten years, and he had reached the pinnacle of Haki without even realizing it. Until one day, a demon broke into the town where he lived and was killed by him. Only then did Jiang Ye realize. In this world... It turns out there are monsters! And as long as he kills demons, he can get various rewards. "Kill the beauty snake, reward: domineering value +10." "Kill the tiger demon, reward: Golden Light Curse." "Kill the Black Mountain Demon King, reward: Pure Sun Flame."... So ever. There is another blind young man in the world holding a staff and sword. Wherever it goes, the demons die.