Hany's a 13-year-old middle schooler living a pretty unconventional life—she's actually staying alone on an apartment building's roof. Her mom passed away when she was young, and her dad's been absent, so she's basically making it work on her own up there.
She got into track and field after being taken under the wing of Hong Du-care Kaek, who became her mentor and inspiration. That connection to athletics seems to be a big deal for her, especially given everything else she's dealing with.
Content compiled by AnimeList.moe from publicly available sources.