The final episode aired in February 2024, and the series was succeeded by Bakuage Sentai Boonboomger in the Super Hero Time block the following month.

In the present, fifteen years after a catastrophe known as the Wrath of God, the current rulers' attempted alliance fails as the Bug Naraku attack Shugodom per the genocide decree of their King Dezunaraku VIII.

After Gira exposes the deposed Rcules and succeeds as Shugodom's king, he convinces Dezunaraku to reconcile with humanity once Jeramie learned his prophecy caused the current Bug Naraku attack.

Prior to Gira's coronation, the Ohsama Sentai briefly ventured into the underworld of Hākabāka where they meet the founder king Lainor Husty, who cryptically reveals an impending calamity that would befall Chikyuu.

Two years later, the King-Ohgers face a new threat to their world when Kamejim's master, the Galactinsect King Dagded Dujardin, arrives to force Chikyu in resuming the war or be destroyed.

Dagded responds by sending the rulers to Earth, learning their ancestors migrated from there while helping the Kyoryugers defeat the revived Deboth Army.

The Ohsama Sentai learn about an ancient power known as the Kings' Proof used by their predecessors to end the war 2000 years ago and reawaken it in order to make stand against Dagded while destroying the remaining Jesters except for Kamejim.

According to Takahito Ōmori, the production of King-Ohger started one and a half years in advance, unlike the usual one-year preparation of previous Sentai series.

[citation needed] An online production announcement conference introducing the main cast and characters and the artist for the show's theme song was held on February 14, 2023.