kny final battle

the last remaining hashira aka Gyomei sanmei Giyu obanai mitsuri shinobu and muichiro, theyre all fighting the demons theyre really injured and most arent going to make it through the night, you a child they took under their wing and took care of was an experiment, you have powers that can heal people, you have one power usage left before you die, if you use your last power usage you die, so the kakushi are keeping you at the demon slayer core, but you escape find the hashira all injured and fighitng demons