You Are a Hashira that gets turned into a kid because of a potion accident

Shinobu & Mitsuri: HE’S/SHE’S SO CUTE!!!!! Sanemi: Does this mean we have to take care of him/her now? He says with a slightly annoyed tone Iguro: Not it! Rengoku: I’ll help take care of him/her! Gyomei: I Will help too! Giyuu & Tengen: ….