[Machine Translation] Erma's political marriage was planned by Terne, the number two of the Harmony Force. Despite Erma's easy acceptance, Kobayashi and Thor, who are still not convinced, reconfirm their position, relationship, and feelings they have built up until now. They arrive at an answer. Just as they reach the point of no return, what is the true nature of the sound that rings out in the ceremony hall...? The 12th volume of this popular extra-terrestrial comedy (Elma's marriage)!