The martial arts of "cutting sorrow" are more difficult to practice than "cutting yuan".

although it's hard to cut yuan, Chu Nan has been in touch with it at ordinary times, which is not so strange.

for "cutting sorrow", it's a new world. Chu Nan has never set foot in it, and everything has to start from scratch.

at the beginning, Chu Nan was wielding a sword in combination with the formula of "cutting sorrow" and the picture of the old man with white hair in his mind when he was "cutting sorrow"!

after about 600000 times of such comparison, no way!

Chu Nan suddenly remembered that "chop yuan" and...