Why? It isn't a mileage run.

Totoro, you seem to have discovered one of the problems with convoluted routings to Asia - the cheap fares don't earn as well. BR is an option but there you only earn on the very top fares (C, Y, K), even more limited than NH or SQ. I would be willing to bet that the cheaper fare you found earns zero.

Are you actually stopping in each of the noted cities? I think that you'll probably end up on a rather convoluted mix of carriers to make this happen and I wouldn't expect it to be a cheap ticket at all.