baggage through

My trip is from Vietnam Ho Chi Minh City to Toronto via Seoul. The final destination is Cleveland, USA. Tickets were purchased through the Internet travel agency MyTrip. From Ho Chi Minh City to Seoul is Vietnam Airlines. Transfer from Seoul to Air Canada. In this case, do I need to enter Korea in Seoul, pick up the checked baggage, and leave the Korea after checking baggage again? If this is the case, it is impossible to transfer at 1 hour 55 minutes. I am anxious. please tell me. My itinerary is SGN-ICN-YYZ-CLE.