Multiple Stops

I am taking a round-trip flight via Air Canada to Shanghai but will transition from Shanghai to other countries before returning. Can I use the 144 Hr Visa Free policy?

March 4: United States to Toronto, Canada
March 5: Canada to Shanghai
-Will stay in Shanghai until March 9th
March 9: Shanghai to Seoul, South Korea
-Will stay in South Korea until March 12th
March 12: South Korea to Tokyo, Japan
- Will stay in Tokyo until March 17th
March 17: Japan to Shanghai, China
- Will stay 1 night
March 18: Shanghai to Canada
- Will stay 1 night in Toronto
March 19: Canada to United States