Childhood friend (todoroki×quirkless/chubby reader)

(y/n) was a built bigger ever since she was a kid, her brother got under her skin about it but her friend was always there to make her feel better. (y/n) got the nickname guppy, currency of shoto. Todoroki would always have (y/n) 's back, no matter what. she made him a promise that she'd try to stay as healthy as...