Club "Magpie" in Minami, Osaka. A mysterious beauty, Kurosegawa Mitsu, joins this popular club, one of the most popular in Minami. Mitsu uses her exceptional observation skills to quickly captivate Kenjo Kosuke, the heir to a large hospital. Kousuke becomes obsessed with her, just like butterflies swarming around nectar. But he doesn't know... That her sweet nectar is poisonous... Is she an angel, or a devil? Bright red poisonous flowers bloom prolifically in the city at night! The hit LINE Manga series is finally available in comic form!