Can the skill of breath adjustment be upgraded in Lu 2 single-player game?

You don't usually practice this! It's useless It is better to take medicine! After you have an alchemy furnace, you are basically not afraid of having no money, no blood and no true qi! Medicinal materials are very cheap! At least practice 10 Erlong Buxin Dan! If you still can't beat the enemy, your level and moves are too low! Or the chief is not at home!

Erlong Buxin Pill → Jiuzhuan Xiongshe Pill+Shunqi Pill → Life +5000 Qi +5000.

Nine turns bear snake gall → Great Ring Dan+Snake gall → Life +200 HP +5500 HP.

Shunqi Pill → Tianqi+Rhizoma Arisaematis → Life -500 Qi +3500 Postprandial Poisoning.

I am also playing this game! It's almost passed. It's a way to make up for childhood memories!