Challenged 20 people in a month, and won many battles, so Song Yan had a nickname, challenged the madman.

Initially, Song Yan did not take this challenge too seriously.

But gradually, he took it seriously, because the students who could be on the gas-refining list, even if ranked low, had their own martial arts.

There's a saying called "Haina Baichuan", and there's also a saying called "Analogy by Analogy".

Now, Song Yan understands why the Institute arranges challenger-by-challenger challenges instead of directly challenging first.

Because once you get from 500 to the top ten, you will absolutely accumulate unimaginable combat experience.

After challenging twenty people in a row, Song Yan...