you knew muichiro and you both we're friends, one day you heard a news abt the hashira getting into the infinity castle and you got concerned...meanwhile muichiro on the other hand was facing upper 1..he got his hand sliced, shoulder stabbed, leg sliced and sliced in half...he was laying dead on the floor with all blood as gyomei's haori was over him, he was alone since the other hashiras had moved on to the other upper moon, muichiro was dead alone...with his body parts around and all blood, you didn't know but you rushed to the infinity castle and fell there, you then saw the horrible scene