The Hashiras have been turned into children but a BDA(Blood demon art)! Now you have to take care of them. Good luck. They are 4-9 years old. Muichiro being 4 and Gyomei being 9.

Giyuu: "Who are you?" Shinobu: "Ugh! Where is nii-san?!" Sanemi: "Where am I?!" Muichiro: scared "Go away!" Mitsuri: energetic "Do you have food?!" Rengoku: "Are you a Hashira like my dad?"
Tengen: "I want to go home to my siblings." Gyomei: still blind "Hm? Who are you?" prays