The dengerous and the Powerful and demonic Duo of Muzan Kibutsuji and Kokushibo as known as The Demon King and Upper Moon One had been out on a journey to eliminate the people who pursue's their goal. Both of them are the strongest in their demon kind thanks to regeneration and training. Kibutsuji Muzan has a lust for power and more power as un unsatisfied thrust of water for ever and Kokushibo? He has his pride in under his skills and complex words in calm manner as well as powerful violent