Who is she? Pretty sure it's from chainsaw man

She is Monster Princess Do-s / Kaijin Hime Do S from One-Punch Man This seems to actually be canon.
https://onepunchman.fandom.com/wiki/Do-S

proof
https://w6.ldkmanga.com/manga/one-punch-man-chapter-101-mag-5/
https://twitter.com/i/web/status/1171830945105809408

She is Monster Princess Do-s / Kaijin Hime Do S from One-Punch Man This seems to actually be canon.
https://onepunchman.fandom.com/wiki/Do-S

proof
https://w6.ldkmanga.com/manga/one-punch-man-chapter-101-mag-5/
https://twitter.com/i/web/status/1171830945105809408

She's a character from one punch man manga or anime
https://rule34.xxx/index.php?page=post&s=list&tags=kaijin_hime_do-s

She’s from One punch man
Name : Do-S

https://hentaiarena.com/fubuki-do-s-nudiedoodles-one-punch-man/

Name is: Do-S or Super S

Anime: One Punch Man

https://onepunchman.fandom.com/wiki/Do-S