OR she grows old extremely slowly and still retains her school girl body, then after receiving the cure, she ages normally and reach old age?

this makes sense with how i'd guess the process of putting someone in a coma to temporarily save her would go, and also i just want it to be true

this manga made me cry so many times, and i'm so relieved that they got a true happy ending. one of my favourite drama/angsty yuri stories and i hope it gets printed in english so i can buy it for my yuri colleciton