Asumi is a bright and lively 12-year-old girl who lives in Itami with her father Yusuke, who runs a coffee shop. Surrounded by beautiful waitress Nahoko and Daisaku, a university student who calls himself a genius inventor, she leads a happy life. One day, a strange phenomenon known as the “Flower Blizzard Incident”, which has been happening all over the Kansai region, occurs near Asumi's house. Yusuke, a former ace of the defence force, gets excited and starts investigating the case. At that time, Asumi meets Ferilin, a boy fairy who holds the key to the case. Asumi asks him about the truth behind the incident. However, Ferrillin escapes and Nahoko, who tries to catch him, is turned into a doll. Asumi, Daisaku and Yusuke track down Ferrillin in order to stop the Hanabuki incident and restore Nahoko to her former self. Daisaku, in particular, is in love with Nahoko and wants to save her at all costs.