TTNH Chapter 162 – Initial persuasion

Chapter 162

So, I am sure everyone noticed this new extreme breakthrough concept. KCZZ15 brought up the question of its benefit.
Here is something from chapter 161: “have to have an extreme breakthrough every two days to increase one grade in a month.”
This could be an estimate, and not a precise number, i.e. 15 extreme breakthroughs = 1 grade.