How much salary is enough to live in Korea?

I'm planning to relocate to Korea soon and am curious about the cost of living. Could you please advise me on how much salary I should aim for to ensure a comfortable life in Korea? I understand that the cost of living may vary depending on the city and individual lifestyle, but I would appreciate a general ballpark figure. Also, are there any specific expenses that I should be aware of or prepare for? Thank you for your help!