Kimetsu No Yaiba: Balance Within

Akira was a boy with a special condition that made his Irises go white or black at random and was the son of two breathing technique masters, His father Yang and his mother Yin. Akira was taught both of his parents techniques and made a promise to carry on their techniques. One night Akira was attacked by a demon and his parents died protecting him. Akira made it his goal to become a demon slayer and eradicate every last demon. Disclaimer: Kimitsu no yaiba does not belong to me and only belongs to their respected owners