Aoi and the Red Tails return to Ishiyama High to deal with Oga, despite not knowing who he is. When Takayuki drags Oga to meet her, Aoi is shocked to find Oga is the one she met at the park, although he doesn't recognize her back. Aoi starts to fight him using powerful bokuto attacks that cut through glass, but he manages to dodge all of her attacks. Impressed by her strength, Oga asks Aoi to become Beelzebub's mother which causes her to become embarrassed and run off. Afterward, Aoi seems to develop feelings towards Oga. Meanwhile, another delinquent gang plots to take down Aoi.
Choc et stupéfaction : le lycée Ishiyama était bien un lycée mixte ! La redoutable Aoi Kunieda, qui commande toutes les filles du lycée, rentre victorieuse de sa campagne pour soumettre le nord du Kantô. Elle décide d’aller régler son compte à un garçon qui a fait parler de lui durant son absence : un certain Tatsumi Oga...
Chi meglio di una "Regina", per fare da mamma a Baby Bell? Ma come in ogni favola che si rispetti, 2 regine sono di troppo. "Specchio, specchio delle mie brame..."
Aoi y las Red Tails regresan al Ishiyama para batirse en duelo con Oga, a pesar de no saber quién es. Cuando Takayuki arrastra a Oga para conocerla, Aoi se queda estupefacta de que Oga sea el chico que conoció el día anterior en el parque, aunque Oga no parece reconocerla.
Aoi empieza una pelea con Oga al sentirse provocada por él y demuestra su gran poder, por lo que Oga quedará impresionado de su fuerza y le ofrecerá ser la madre de Beelzebub, acto que Aoi malinterpretará.