Will it be affected if I leave the tour group in Korea and come back to Korea again?

How long do you plan to stay in Korea after leaving the tour group? Even if you return to the country within the tourist visa period, if you want to come to Korea in the future, your credibility will be reduced and your visa will most likely be refused. Instead of coming with a tour group, If you want to leave the group, it is better to apply for an independent travel visa directly. You can stay in South Korea for 90 days for the first time