Fifteen years ago, the Stardust cabin was brightly lit, and six teenagers gathered around the mecha parts and made a promise to "stand at the top of the mecha together."
Fifteen years later, they each became the secret boss of the mecha world, but they lost each other over the years - some lived in seclusion behind the scenes and worked hard on sword-type mechas, some were exhausted physically and mentally from running the mecha empire, and some silently stayed true to their original aspirations and polished their skills.
An unexpected reunion brings the six people together again in the Stardust Cabin. There is no dispute over fame or fortune, only the mutual hostility and companionship between old friends, and only the bond and tacit understanding engraved in the bones.
When the mecha crisis comes, when the passion of the past is revived, the six men once again stand side by side, using the mecha as a blade and friendship as a shield, to continue writing their legend:
"Happy departure, not only a reunion, but also a chance for us to go on another mecha date together!"
