Duel for a Great First Love

Seikichi tests out a new model of a firework cannon with positive results. Akai is scared out of his wits when he briefly encounters the now two-headed blue sky beast. Oriku arrives in the row house, only to disagree with Seikichi's ambition to build a firework cannon. Seikichi later unveils to Sora that he used to stay with Oriku's family who owns a famous fireworks shop. Sora later explains to Oriku that Seikichi left her family on behalf of his ambition. As the blue sky beast makes another appearance, Oriku causes an explosion from her family shop.