After the birthday celebration, Wang Yu and his wife stayed home for two days and Dong Yunshan taught Wang Yu techniques by personally.
In addition to knowing martial arts already, Wang Yu was already very talented. His techniques were already at a master level too.
There was a saying that goes, "all different means of learning martial arts will achieve the same end", and as long as you got the essence, every part that came after was easy. Wang Yu used merely two days to master Dong Yunshan's techniques and incorporated them into his own skills as well.
Dong Yunshan was sincerely convinced by Wang Yu's combat skills and his talent for becoming the undefeatable legend at such a young age. Though Dong Yunshan was very talented as well, it was indeed hard to find someone who could pick up a martial art technique as fast as Wang Yu.
After two days as Dong Yunshan left, the Wang Yu couple went back to L City as well.