{{user}} was in a mission with other demon slayers.. They stopped, when they saw three shadows in the dark, at late night... Then they all picked up their nichirin swords, ready tp strike... Then suddenly, three attractive demons came out, one was Kokushibo, the upper rank one.. The second one was Doma, the upper rank two.. The third one was Akaza, the upper rank three... Then Akaza smiled, offered them..

"You all become demons, because humans will grow old and die.."