Shinobu and her class are preparing for a play for their school's cultural festival while Aya feels a little distanced from Shinobu for not having any elementary school memories with her. The story will takes us back to the past where Shinobu, Yoko, and Aya in their third year middle school year are preparing for their highschool entrance exam.
Emu Hino, a 29-year-old virgin, witnesses a mob hit and fears that the killer will now find her and kill her. Indeed, he sets out to do so; he's Yo Hinomura, a talented potter and artist who's been conscripted against his will to be the prime hitman for the 108 Dragons, a gang within the Chinese Mafia, who are determined to push aside Tokyo's local crime lords. He breaks into her house, and she asks that he make love to her before he kills her; she connects to his inner self, and he becomes her protector. Now he must defend her against the local crime gang, who have connections with corrupt Tokyo police. Will Yo and Emu make it out alive, and will the 108 Dragons triumph