Responses
Hey! I’ve been reading here for ten years and have only ever seen one. Luckily I tagged it
https://www.mangago.me/read-manga/hanaiki_kasoku/
Not exactly hanahaki but very close: https://www.mangago.me/read-manga/tsubanakasu_haru/

Is there any stories that have hanahaki disease? I remember it being really popular in 2020 and I forgot about it is there any manhwa or manga like that?