Is dual citizenship legal in Korea?

Good afternoon, I am an interested party in Korean legal matters. I am particularly curious about dual citizenship. I understand that different countries have different policies and legal frameworks surrounding dual citizenship, and I am wondering if the same applies to Korea. Is dual citizenship recognized and legal in the Republic of Korea? If so, what are the legal implications for those who hold dual citizenship? Would it have any effect on their rights, privileges, or obligations in Korea? Could you also explain the process for obtaining dual citizenship in Korea, if applicable? Thank you for your time and attention to this matter.