Project BLUE Chikyuu SOS

The entire series takes place in a version of the nineties redone into Retro-futurism, being behind in current technologies, and far ahead in others.

On January 1, 1995, a G-Reactive fighter plane was being tested, while it was hit by a mysterious rainbow light and disappeared.

5 years later, two boys, Billy Kimura and Penny Carter, meet at a train station where a new bullet train utilizing G-Reactive was being launched.

However, to their shock, the train was hit by a rainbow beam of light, and disappeared.

After a series of events and acquaintances, the two boys discover that aliens were beginning to invade Earth.

Fortunately, scientists developed the Sky Knight, a fighter plane capable of defending the world.

As the extraterrestrials begin to invade, Billy, Penny, and their comrades begin their attempt to save the human race from the alien menace.