I recommend the following novels where the main characters know eye techniques: "Uchiha Duplication God": The protagonist can copy all ninjutsu and the limits of blood succession, as well as invincible spiritual power and physical body. [The City's Supreme Grade Divine Eyes: The main character Yang Chuan can see everything, including people!] [Naruto Tree of God's Fruit in the Other World: The protagonist eats the fruit of the Tree of God and obtains the reincarnation eye of the big cylinder wood Hui Ye!] Top Grade Crazy Son-in-Law: The protagonist swept the world with heaven-defying eye techniques, including medical skills, x-ray vision, martial arts, pills, and so on. [One Piece: My Conqueror's Color Can Cultivate on Its Own]: The protagonist activates the automatic cultivation system. Not only can he cultivate on his own, but he can also mutate his abilities! I hope you like this fairy's recommendation. Muah ~😗