Years prior, a devastating catastrophe submerged the ancient city of Tokyo. Now, Aika and her young associate, Rion, work for a recovery agency specializing in retrieving relics of the past. However, the agency's owner faces dire financial …

Aika was tasked with gathering information on a substance known as "Lagu," but her efforts were thwarted by Hagen and his sister Neena, who harbor their own ambitions for the material. Held captive aboard their vessel, Aika and Rion despera…

With Gusto’s help, Aika managed to escape the ship, leaving Rion behind. The final battle had taken its toll; she was weakened and no longer able to confront Hagen and his crew. Meanwhile, Rion and Maypia, a spy they had encountered, attemp…

The Aika team ventures into space, driven by the need to thwart Hargen's machinations. His plan is fully formed, poised for execution. But Aika soon faces a formidable opponent in Neena, who carries an artifact granting her abilities compar…

Despite the loss of its leader, the Delmo organization persists, its sole purpose remaining retribution against Aika. A clandestine operation is being organized to eliminate her during her time at the hotel.

The Delmo organization orchestrated an operation veiled as a data-gathering exercise aboard a highly advanced aircraft. Their true aim was to secretly assess Aika's combat capabilities and identify vulnerabilities. Unaware of the deception,…

Working late, Aika is unexpectedly attacked by an agent of Delmo, who manages to flee the scene. Soon after, the building where Aika was caught in the attack explodes. Rion and her companions attend Aika’s funeral. With the help of Maypia a…