Country Hopping in Asia

Travel multiple countries while you are in Asia

OneWorld's "Single Continent" fair let you visit and explore multiple destinations within a single continent.
This is their tagline:

"With access to more than 50 destinations throughout 18 countries, a oneworld® Visit Asia Pass is your key to discovering this fascinating region and its people.
Whether you are exploring India and Pakistan on the subcontinent, the bustling cities of China and Japan in North East Asia or the beautiful island nations of South East Asia, your Visit Asia Pass provides you with great flexibility and value.
A Visit Asia Pass enables you to visit the following countries: Bangladesh, Cambodia, China, Guam, Hong Kong, India, Indonesia, Japan, Malaysia, Nepal, Pakistan, the Philippines, Singapore, South Korea, Sri Lanka, Taiwan, Thailand and Vietnam."

I found one of the airline to book with is Cathay Pacific and Japan Airline.

With the OneWorld booking tool, you can choose multiple destinations. 

Once you are done, choose your preferred flight for each leg and click preview, it will give you this nifty little itinerary. the website said you can get a quote from it - I still have not figure out how.

Looking at the route, some of the best options seems to be

NY > Chicago > Tokyo  or Nagoya > Hong Kong > Singapore > Bangkok > Pukhat > Beijing > NY
or
Toronto > Hong Kong > Malaysia (stop tbd) > Singapore > Taiwan > Kansai  or Nagoya > NY
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