The vibrant nation of Gokkan becomes the unexpected epicenter of chaos when Gira Husty, the self-proclaimed evil king of Shugoddam, mysteriously collapses unconscious during a diplomatic visit. Troubled by this sudden affliction, his royal advisors and fellow monarchs—Yanma, Himeno, Rita, and Kaguragi—gather in desperate urgency. When Racles Husty, Gira’s complex and
estranged brother, cryptically suggests that the key to saving Gira lies beyond the veil of the living, the team realizes they must enter the afterlife realm known as Hades to retrieve his wandering soul. Driven by fierce loyalty and a lingering sense of duty, the young rulers embark on a perilous journey into the underworld, leaving their mortal kingdoms unguarded against unseen threats.Upon descending into Hades, the King-Ohgers are confronted by Duzola, a vengeful former ruler of Gokkan whose spirit was banished long ago. Fueled by bitter jealousy toward the current generation of monarchs and a relentless thirst for supreme power, Duzola has orchestrated Gira’s spiritual imprisonment. He intends to use Gira's immense, untamed monarchical energy to break the ancient seals holding him in the underworld, thereby allowing him to return to the surface and conquer the living realm. To complicate matters further, the team is forced to navigate treacherous psychological trials designed to exploit their deepest insecurities, forcing each sovereign to confront their personal demons and the heavy burdens of their crowns.Amidst these trials, the enigmatic Death God, Laius, presides over the underworld with chilling neutrality, offering cryptic riddles rather than direct help. Through sheer
emotional resilience, Yanma, Himeno, Rita, and Kaguragi overcome their respective illusions, proving that their bonds of comradeship transcend mortal politics and individual pride. They finally locate Gira’s dormant spirit trapped within a crystalline prison. However, freeing him requires a massive surge of united life force, prompting a breathtaking spiritual confrontation against Duzola and his resurrected phantom minions.Channeling their collective royal spirits, the King-Ohgers awaken Gira, who instantly transforms into his true sovereign form. Reunited and empowered by newfound wisdom, the team delivers a devastating, synchronized finishing blow that obliterates Duzola once and for all. With the underworld crisis resolved and the spiritual balance restored, Gira’s soul is returned to his physical body in Gokkan. Awakening to the cheers of his devoted friends and family, Gira emerges stronger, more humble, and profoundly deeply connected to his allies. The monarchs return to their respective nations, carrying a renewed appreciation for life, unity, and the heavy yet noble responsibility of leading their people into a prosperous future.