Well, I really curious about 9 Yang really. In HSDS, it claims to be a very high level inner art that comparable to 9 Nin. And at the end of ROCH, we witness that it was stolen from Shaolin. So basically, it should be the strongest inner art that Shaolin possessed.
But, if the 9 Yang was really the strongest Shaolin inner, how can Shaolin got bullied in DGSD? And which is more powerful, between 9 Yang and Yi Gin Ging, and of course, the stolen Sanskirt text that stolen from Shaolin in DGSG?