Since the first contact with extraterrestrials on the lunar surface, mankind's technology has surged ahead. Half a century later, while most enjoy modern comforts, Robby Yaji and Hacchi Kita struggle to find respite in this futuristic world. Robby—a chronically unlucky soul—owes a fortune to creditors after falling for shady quick‑cash schemes, and Hacchi battles the monotony of his ordinary existence. Their fate intertwines when loan‑shark magnate Yang dispatches Hacchi to recover Robby's debt. Instead of settling, Robby rockets into orbit toward Isekandar, a world rumored to grant bliss to every visitor. Eager for adventure, Hacchi joins him on a voyage packed with alien skirmishes, colossal mecha duels, and relentless mischief—while evading Yang and his henchmen who scour the cosmos for them. The journey takes them through nebulae and abandoned colonies, where they uncover secrets that could reshape humanity. Meanwhile, Robby's reckless maneuvers attract the attention of rival syndicates eager to seize his debts. Hacchi, loyalty, must decide whether to protect his friend or surrender to the dark inevitable.
