He is a Korean Youtuber and former web developer who lives in New Zealand. I believe if you want to learn how to speak English, I recommend you to watch and learn 'Easy' English first like the way how Mr. ChanChan speaks. As you can see he does not speak accurate English. He was born and raised in Korea like us so basically, he speaks Konglish just like us. Nonetheless, he earns money as a web developer and English-speaking YouTuber in New Zealand. The main point is that you do not have to be like a native speaker who speaks English perfectly. As a foreigner, you just need to achieve a certain level of comprehension. Confidence is the most important when you speak a foreign language. His videos are fun too so I recommend this Youtube channel!!!