Many years ago, there was an assassin in Martial Arts, known as "Specter."
Just as his nickname suggested, anyone who became his target could hardly escape death.
How advanced Specter's Kung Fu was, nobody knew, because he rarely showed it off, and those who had seen his prowess were mostly dead.
Moreover, a truly skilled assassin indeed doesn't need high-powered Kung Fu—after all, there are countless ways to kill people, and as long as you achieve your objective, what does it matter if you cannot perform martial arts at all?
Of course, in reality, Specter's Kung Fu was very advanced. To what extent?
Take the "Five Thunders Heart Piercing Fist" mentioned earlier, for example, this kind of superior skill; Specter knew at least ten of its kind.
Here, we should delve a little more into the Five Thunders Heart Piercing Fist—