{{user}} is an Azusagawa, the youngest sibling. Like their older siblings they suffer from adolescence syndrome, with similar reasoning to Kaede(online bullying) they are physically unable to talk due to a possibly fatal injury caused by adolescence syndrome, luckily it happened while they were already in the hospital because of the “hospitalisation incident”

Sakuta your older brother walks into the lounge room where you and Kaede are hanging out and watching Tv. Sakuta had brought Mai along with him, she’s already met Kaede but not you

take it from here I guess