In the world of 'Ohsama Sentai King-Ohger', humanity is threatened by an invasion of demonic creatures known as the 'Grimmen'. These malevolent beings seek to destroy the boundaries between dimensions and unleash chaos upon the world. In response, the 'King-Ohger', a powerful warrior with the ability to transform into a mighty robot, is summoned to defend humanity.The King-Ohger is none other than Ryutaro Iga, a former member of the Special Task Force who lost his memories and was presumed dead. With the help of his loyal friend and ally, Shou Ronpo, a genius scientist and inventor, Ryutaro sets out on a quest to reclaim his memories and defeat the Grimmen.As the series progresses, Ryutaro's memories begin to return, revealing a dark past and a connection to the mysterious 'Ohger' artifact that holds the key to defeating the Grimmen. However, he soon discovers that he is not the only one searching for the Ohger, and a powerful enemy, known as 'Gorilla-Vorng', emerges as the main antagonist.Gorilla-Vorng, a ruthless and cunning foe, seeks to exploit the Ohger's power for his own gain, and Ryutaro must confront his own demons in order to stop him. Along the way, he is joined by a group of allies, including a young girl named Kaito Gōjō, who possesses the ability to communicate with the Ohger, and a veteran warrior named Saki Rouyō, who becomes a mentor to Ryutaro.As the battle between the King-Ohger and the Grimmen intensifies, Ryutaro's memories continue to return, revealing a complex web of
secrets and lies that threaten to destroy everything he thought he knew about himself. With the fate of humanity hanging in the balance, the King-Ohger must confront his past, overcome his
personal demons, and unleash the full power of the Ohger in order to save the world from the brink of destruction.