A Thousand Meridians Working at the Same Time
Editor: Atlas Studios
Firstly, even if he opened the fine meridians and let his Internal Breath circulate in them, he would not be able to obtain an obvious increase in strength because the fine meridians were weak.
If he had the time, he might as well let his Internal Breath circulate in the other meridians for a cycle.
Secondly, even if he was really so free that he wanted to open the fine meridians, there were millions of them in the body of an ordinary person. If he wanted to open them one by one, it was an extremely terrifying amount of work. He would not be able to complete it until death.
Since there was not enough benefits and required a terrifying amount of time, naturally no martial artist would waste their time on this.