Rasetsu, Vol. 4, 4

A Supernatural Spin-off of Yurara Rasetsu Hyuga works for an exorcist agency where she uses her special powers to banish evil spirits. There's a story behind the red flower mark on her chest though--it's a memento left by a powerful spirit who vowed to claim her on her 20th birthday. Unless Rasetsu can find true love by then, she is fated to become his... Kuryu starts to realize that Rasetsu may have feelings for Yako--and he doesn't like it one bit. When Yako falls ill, will Kuryu help him or take this opportunity to weaken his love rival?