a forgotten promise

in this story terra Bryan made a promise to care for her little cousin if he ever loses his parents and he eventually did lose his parents because of a car crash but only he had survived the car crash but his potty training had been lost in the process of the car crash and ended up in the hospital and was wearing diapers because of the incident and the matter of his health eminently went to his older cousin terra Bryan but she end up having amnesia and forgot her promise she made to her little cousin