Webthe conflict began when kokushibo and muichiro tokito were taken to the same room inside the infinity castle. Kokushibo, showcasing his superior skills,. Webif we focus on kokushibo’s strength, he pretty much exceeds the most powerful raw strength after demon king muzan. Kokushibo carries a giant flesh sword. Webas the battle between kokushibo and the demon slayers comes to an end, muichiro is able to come to a close proximity to him and is able to pierce him with his transformed. Webafter learning of muichiro’s death at the hands of kokushibo, tanjiro shed tears over the loss of his friend and vowed to continue fighting hard.