How about becoming a Korean citizen?

First of all, we should know that there is no multi-nationality certification in China. If you adopt other Guo nationality, China nationality will be lost.

Secondly, South Korea is a very difficult country to be naturalized. For example, there is a large private hospital in Seoul. The director is European. He went to Korea more than ten years ago and applied for Korean citizenship only a few years after arriving in Korea. This hospital was opened five or six years ago, and its operation is good, but its nationality was approved only last year. This is not a special case. Everyone who wants to become a Korean citizen will have such a wait. The idea of Koreans is that if you want to be my nationality, you should love my country, not add nationality for the sake of adding nationality, so it will take a long time to study.

If Korean nationality is successful, the treatment is still very good, at least you don't have to worry about medical care at all, just like medical insurance. Koreans pay great attention to their health. Even if you have a cold, you will go to the hospital to prescribe medicine, so the medical expenses are quite large. However, if they have nationality, they only need to pay a small part, which is very good.

If you want to live in Korea, it is good to apply for naturalization.