Naval officer Mikami Taku composed this song to serve as an anthem for the Young Officers' Movement in 1930, the Young Officers' Movement was one of a number of loyalist factions in the Imperial Japanese Army who sought to bring about the Shōwa Restoration.
The Shōwa Restoration, which was promoted by author Kita Ikki, was envisioned as an overthrow of the liberal Taishō democracy by faithful subjects of the Emperor, said democracy they viewed as corrupt, and putting more power unto his office. The desired outcome of the restoration was a strong emperor backed by a loyal and qualified group of nationalists.
By 1936, the Young Officers' Movement had assembled a rebellious force to overthrow the government, this was called the Righteous Army, and had the backing of the Imperial Way (Kōdoha) Faction of the IJA, a totalitarian, militaristic, and aggressively expansionist branch of the Army.
On the 26th of February, 1936, the Righteous Army set out to purge the government and military leadership of their rivals and ideological enemies. Whilst they succeeded in assassinating several leading officials, they failed to assissinate Prime Minister Keisuke Okada, or seize the Imperial Palace.
Unable to capitalise on their actions, or force a change in government, due to a lack of support, they quickly found themselves overwhelmed, Emperor Hirohito also publically expressed his opposition to the coup, a critical blow to the uprising.
The leaders of the rebellion were tried and executed, whilst the Kōdōha Faction lost influence to their rivals, the Tōseiha, the rebellion also resulted in increased military influence over the government.
The flag is that carried by the Righteous Army, which features the password 尊皇討奸 (Revere the Emperor, Destroy the Traitors), which was inspired by a Meiji Restoration-era slogan - Revere the Emperor, Destroy the Shogunate.