It’s not surprising that Ahn Hyo Seop speaks fluent English considering he lived in Canada since he was 7yrs old, and went back only to Korea when he went to college at age 17. He can speak Korean of course but I read somewhere that he was asked to practice more to get away with his English twang when talking in Korean when he decided to enter showbiz.
Ahn Hyo Seop is fluent in English given the fact that he lived in Canada since age 7 and went back to Korea when he was already 17yrs old to pursue his dream in the entertainment industry.