The old town of Tokyo is buried under water following a terrible catastrophe which has occurred several years before. Aika and her young partner Rion work for an agency specializing in the recovery of…

Aika has been entrusted with a mission of collecting information on a material called "Lagu", but its progress was stopped by Hagen and his sister Neena, which have other projects for Lagu. Held capti…

Aika with the assistance of her friend Gusto, succeed in escaping from the ship, leaving behind Rion. Her last combat left her weakened and she is no longer any match to face Hagen and his crew. Durin…

The team of Aika finds themselves involved in space in the hope to carry a term to the intrigues of Hargen of which all the parts are in place to put at execution its terrible plan. But quickly Aika w…

Even after the disappearance of its leader, the Delmo organization continues its activities with its only objective: taking its revenge on Aika. A secret operation is assembled to cut it down during i…

An operation disguised in the form of collecting information on board a ultra-sophisticated plane, is worked out by the Delmo organization in order to secretly study the aptitudes of Aika for combat t…

During her overtime at the office, Aika is suddenly attacked by an agent of Delmo which manages to escape afterwards. Little time after, the building in which Aika is in explodes. Rion and her friends…