The era of the Three Sovereigns and Five Emperors is an important period in Chinese history.

Gidousanshi is one of the ancient Chinese official positions.

Fujiwara no Korechika, who held the title of Gidō Sanshi, was an important politician during the Heian period.

The Fertile Crescent is known as the birthplace of ancient agricultural civilizations.

He succeeded in a difficult project with the spirit of 'ishi no ue ni mo sannen', which means great works are performed by perseverance.

He is training his triceps brachii muscle every day.

He goes to the gym every day to train his triceps surae muscle.

He damaged his peroneus tertius muscle due to a foot injury.

The Tokyo metropolitan region is the center of Japan's economy.

Mr. Shimooka is my best friend.