*KIMETSU NO YAIBA DOES NOT BELONG TO ME. IT BELONGS TO KOYOHARU GOTOGE. PLEASE SUPPORT THE OFFICAL RELEASE* OK.SO. Muzan Jackson, went to get the milk and never came back :'). Soo yeh the 12 Kizuki are alone and on their own. Also don't question how they got technology ok :). PS: HEE HEE