Rasetsu no Hana

A woman named Rasetsu Hyuga is employed by an exorcist agency, utilizing her abilities to expel malevolent spirits. A red flower mark on her chest is a remnant of a powerful spirit that once promised to take her on her 20th birthday, dooming her to its fate unless she finds true love before then. A man named Yako Hoshino, who also possesses spiritual abilities, visits the agency for assistance with a cursed book. While he has encountered many unusual occurrences, he is surprised to see Rasetsu, who closely resembles his former love, Yurara.