Shoujo Hana Zukan

About 80 years ago, a meteorite with extraterrestrial material attached to it fell to the earth. Since then, "flowers" have been blooming on the heads of human women, and these flowers were called "space flowers." (Source: Manga Jam, translated) *Note: Originally published independently on Pixiv, it was picked up for commercial serialization in Shodensha's Manga Jam starting 2020-06-03. The chapter count includes a volume bonus chapter.*