None. Japanese is part of the Japonic language family, which only includes languages from Mainland Japan and the Ryukyu Islands.
Korean
South Korea's official languages are Korean and Korean Sign Language. Their currency is 'won' or ₩.
South Korea and North Korea have Korean as the principal language.
South Korea and North Korea are the primary countries where Korean is the official language. Additionally, Korean is also an official language in the Yanbian Korean Autonomous Prefecture in China.
South Korea
Han-geul(한글) is used in South Korea. North and South Korea use same language but there's some different words.
All language families are equally "important", but what is probably meant is: What is the name of the largest language family in South Africa, that is the language family having the most speakers who use it as their mother tongue? That would be the Nguni (comprising Zulu, Xhosa and Swazi languages).
sometimes but not always
No. South Korea and the Phillipines are separate countries with very different cultures and language.
I was born in Korea, and there weren't anythin like ESL in my school at Korea.
The English language is the most prevalent foreign language in Korea because of the strong alliance between Korea and the United States, including the US military presence in Korea. However, the English language is not dominant in Korea, Korean is, and less than 10% of Koreans speak English.