In the mid-21st century, mankind has begun the exploration of space, and one company, Planet Catcher Corporation, has pioneered capturing asteroids and comets to mine the resources within them for use on Earth. On one such asteroid, Tortatis, lives 12-year-old Nanbu Ushiwaka - the only child ever to be born in space and survive. But survival itself is no longer guaranteed - a military satellite triggers a disaster during a operation to capture Halley`s Comet, and Ushiwaka and his fellow colonists must find a way to survive when both their country and their company abandon them. Can they escape before the nuclear reactor on the asteroid melts down? Or are they doomed to die as they lived, among the stars?

Shirakawa Hotaru, a girl who's in love with Inami Ken, finally confesses her love. From there on, they were happy couples, until one summer. Ken met a new friend, Tobise Tomoe, who is Hotaru's best friend. Tomoe seems to have her own charm. Ken, now have two paths to choose from; to be with Shirakawa Hotaru or Tobise Tomoe. Otherwise, he will lose them both.

A side story taking place somewhere before the second half of the series, prior to Daba acquiring the L-Gaim Mk-II. Daba's comrade Leccee is captured by Poseidal's forces, and Daba and his rebels attempt to save her.

New York City, the late 1920s. The battle with Nobunaga is over, the city restored to peace...until the owner of Little Lip Theater informs Shinjiro... "This time, the leading lady will be...you." Thus Shinjiro, disguised as the actress Petitmint, is forced into the role of "Cleopatra." The Star Division members set out to persuade a reluctant Shinjiro, beginning a chase across the five boroughs. Meanwhile, a dark-skinned youth and his servant have appeared unexpectedly in the midst of the flourishing city. His eyes, concealing a silent wrath, are fixed upon nothing less than the Statue of Liberty. Now Shinjiro and company must protect this city of hopes and dreams from a new menace while safely raising the curtain on a new show.