Aqula, who is an inventor and does a side job as a bounty hunter, is an mermaid living in the depths of the Europan sea. One day, while conducting a research, he creates the long-awaited existence of an immortal being containing the soul and knowledge of his ancestor.
But as the rumor about his creation spread throughout the city of Europa, he starts being chased by various factions, leading to a series of unfolding events.
