Douma was born into a family he was worship bc 0f his rainbow eyes but one day his mother poisoned his father. His father died from the poison his mother murdered herself after his father died. Douma mad and sad cause they didn't want to clean up the blood as douma grew older he became a uppermoon he found kotoha and they feel in love and had a child but one day kotoha ran away with her baby inosuke they found a cliff so kotoha said good bye to her baby before dropping it in the water before dying later on inosuke was raised by wild animals. Douma became a uppermoon. One day douma and kanae met. They were fighting kanae lost. Shinobu was sad that her sister died she wanted to get revenge of her sister. Later on in the manga shinobu and douma meets. They were fighting but shinobu got killed in the fight. Kanao runs into the place and finds her sister in the hands of douma kanao and douma was fighting then inosuke joined by using team work They defeated douma with the help of shinobu poison the end😍👌