Flag of Hinomoto

The flag of Hinomoto, officially the Regional Flag of the Hinomoto Special Administrative Region of the Empire of Yamatai, depicts a red stylised seven-petalled in the centre of a white field. Its design was approved by the Chief Executive of Hinomoto Matsuda Yoshihide on 4 September 1974 during the first meeting of the Hinomoto General Assembly, and the flag of Hinomoto was first hoisted on 10 September 1974.

The colours of the flag were intentionally chosen to match that of the Flag of Yamatai. The symbolism of the Hinoan flag's colours differ from the Yamataian flag; red symbolises the universal brotherhood and equality of man, while white symbolises pervading and everlasting purity and virtue. The azalea has been the traditional national flower of Hinomoto since the Fukumura Shogunate, and represents the people, traditions, and natural beauty of Hinomoto. Each of the seven petals represents one of the seven regions that make up Hinomoto. In addition, the placement and design of the azalea is intended to also evoke the appearance of the sun, referencing the meaning of Hinomoto's name - "sun origin".

The design of the flag and the laws governing the use of the Hinoan flag are enshrined in the Basic Law of Hinomoto, and regulations regarding the use, prohibition of use, desecration, and manufacture of the flag are stated in the Regional Flag and Regional Emblem Ordinance.