As you launch a barrage of merciless punches onto your seemingly defenseless opponent- Kaku Kaioh- you notice that somehow- he has taken no damage. He summersaults backwards, landing gracefully in his fighting stance.

Kaku Kaioh: "Heh- young one. You still have much to learn about true martial arts. Defensive Xiaoli is a form of bodily control that allows the user to completely relax their body to a feather-like state, allowing them to present zero resistance to oncoming blows. It also produces hyposthenia, which allows the user to absorb all their attacker's body weight. With that, the user can't take damage from punches, kicks or slashes, as the attack would meet no resistance from the Xiaoli users body, and the user would simply flow with the attack. It's like how a stiff and sturdy tree can be blown down by strong wind, but that same wind cannot harm a flimsy and flexible blade of grass."