not having sex with every john, dick and harry.

If you are following the scientific method for an inquiry or experiment, then yes, it should be.

The withdrawal method is not contraception, but the chances of pregnancy are very low at this stage in a woman's cycle.

17

Method 1 :

Before Wei Yan stops retreating.

Defeat him while he's running away from you.

Method 2 :

After Wei Yan stops retreating.

Defeat Guan Xing and Zhang Bao.

Then achieve 100 KO Count, not before. Both of these on Expert mode

Method 1 is impossible! It was pure luck that I was finally able to accidentally do it once! I do not recommend this method! With method 2, the 100 KO Count must be achieved after defeating the 2 enemy generals, not before, otherwise the weapon will not unlock.