Japan is separated from Asia by the Sea of Japan (also known as the East Sea).
Japan is separated from mainland East Asia by the Korean Strait and Sea of Japan.
Venezuela is in South America. Iran is in Asia, near the Middle East. Japan is also in Asia, in the far east.
The Sea of Japan (also known as the East Sea) separates Japan from Asia.
I can't tell if you're serious or not. But Japan is part of Asia. Asia is a continent. Japan and China are countries in the continent of Asia.
Asia
Technically, Iraq is in Asia, so Iraqis would be considered Asian. However, the term "Asian" in most Anglophone countries is used to refer to people from East Asia (China, Korea, Japan, etc.), so Iraqis would be considered Middle Eastern, not Asian, since Iraq is in the Middle East, not East Asia.
Vietnam is geographically on the borderline of east asia and se asia. Vietnam is the only country in se asia that can also be categorically part of east asia. Vietnam's people and culture is east asian, but geographically located in the borderline of se asia/east asia.
The Sea of Japan (also known as East Sea) lies between the Japanese Islands and the coast of mainland Asia.
The only country in southeast Asia that was not fully absorbed by one or another European empires was Thailand. Japan also avoided that fate, but Japan is in east Asia, not Southeast Asia.
The Land of the Rising Sun, also known as Japan, is located in East Asia.
No. China is in Asia. It is in the region of Asia known as the Far East (which also includes the countries of North and South Korea, as well as Japan and Taiwan).