Written by Tomonori Sugihara. The light novels, much like the manga, differ from the TV series in various ways. Renton Thurston is a young 14 year old who is tired of his boring life and spends his time lifting, an extreme form of aerial hoverboarding. One day, a large mecha known as an LFO crash lands in his grandfather's garage and a beautiful young girl named Eureka emerges. This begins a journey that will change both of their lives...

The countries of Mephius and Garbera have been waging a war for ten years and are trying to put an end to this long fight through a political marriage between the two royal families. Orba, who was driven from his home because of the war and was forced to become a gladiator, looks exactly like the crown prince of Mephius, and it has been decided he will be substituting him during the wedding ceremony. On the other hand, Vileena, the princess of Garbera, has secretly decided to ensnare the crown prince for her own country’s interests. (Source: Baka-Tsuki)

The Principality of Atall lies between two great powers: the Kingdom of Allion to the west, and the Holy Dytiann Alliance to the east. Leo Attiel, the second-born prince, was sent to Allion as little more than a hostage, where he studied and trained in the military arts under a frontier general. And now, the times have reached a turning point. The relationship between Allion and Conscon Temple, a neutral land adjoining Atall, have worsened. Percy, sent from Atall as reinforcement; Camus, a warrior monk; and Kuon, a mercenary from a remote region, join forces to resist the looming threat of Allion’s army. At the centre of the fighting, the three of them and Leo are about to have their fated encounter.

Oosawa Maria is a Japanese photographer currently working in Shanghai, China. Along with her partner Mino, she searches for potential newsworthy stories throughout the city. When strange events occur at a local festival, Maria and Mino immediately investigate. Quickly, the two are immersed in a battle between unknown masked men and a strange, white-haired woman. Just when Maria is about to be caught in the crossfire, an old friend by the name of Canaan appears and helps Maria escape. But a sinister plot over a deadly virus soon develops, and Canaan learns she must confront her past if she wants any chance at stopping the perpetrator and saving her friends.