Oga's family coerce him into taking Beelzebub to the park so he can make his 'park debut'. Despite making a bad impression with the other mothers, Oga meets a girl named Aoi who is looking after her little brother, Kouta. Aoi tries to help Oga make his park debut which, partly due to the appearance of Alaindelon, doesn't reap much success. The general antics convince the other mothers to call over a police officer, who starts badmouthing both Oga and Aoi. Before Aoi can lose her temper, Oga throws him into a trash can, with Aoi coming off impressed. After Oga leaves, it is revealed Aoi's true identity is that of Aoi Kunieda, leader of the Red Tails gang and one of the Tōhōshinki.
S’il existe l’initiation au jardin d’enfants ou à la maternelle, il existe aussi l’initiation au parc public du quartier : il s’agit de présenter son enfant aux autres enfants du quartier afin qu’ils se lient d’amitié. C’est donc à cette épreuve que va devoir se soumettre Oga, sans l’aide de Hilda...
Baby Bell si presenta alla comunità del parco, fondamentale per la sua crescita. Muoversi, che alle 13.00 inizia la soap opera.
Oga es coaccionado por su familia para llevar a Beelzebub al parque y que haga su "debut". A pesar de crear una mala impresión al resto de madres, Oga conoce a una chica llamada Aoi que está cuidando a su hermano pequeño, Kouta.
Aoi intentará ayudar a Oga en el debut de Beelzebub en el parque ya que éste parece no tener mucho éxito.
