The side story takes place in 2017 a.t.b., between the rise of the “Black Knights” organization and the return of the supposedly "dead" Zero. The setting is in Europe, where the European Union (E.U.) allied nations are being invaded by the overwhelming forces of the Holy Britannian Empire. On the verge of defeat, the E.U. army forms a special unit known as “W-0″, of which a young pilot named Akito Hyuga is a member. Leila Malkal , a former Britannian Aristocrat comes to the E.U.'s aid, commanding the “Wyvern” Knightmare corps comprised of Japanese teenagers. They recklessly plunge into a battlefield, where the survival rate is extremely low, at about 5% only. They fight for their freedom and for a "home" to which they can return.

For a long time, Natalie, an Australian architect living in New York City, had always believed that what she had seen in rom-coms is all fantasy. But after thwarting a mugger at a subway station only to be knocked out while fleeing, Natalie wakes up and discovers that her life has suddenly become her worst nightmare—a romantic comedy—and she is the leading lady.

In 2039, helper androids are widespread as general purpose electronics. Keiichirou lost his family in a traffic accident and retired from his band. One day, he finds an old model android in a garbage dump. He takes her home and names her "Flower".

Sebastian, a man in his thirties, works a series of temporary jobs and he embraces love at every opportunity. He transforms, through a series of short encounters, as the world flirts with possible apocalypse.

Samay, an average IT guy, gets trapped in an evil plan of a scientist. He has to fight back, to save his love and the world by breaking the time loop.