Half a step forward with his left foot, he stepped the ground, and while his left foot stepped on the ground, Tifa's right half of his body twisted back as far as he could, turning nearly ninety degrees, and then using the power generated by the rotation of his body, he slammed his right hand into the closed door. The moment Tifa's fist hit the door, his left foot had already hit the ground heavily, "Boom! The loud bang fully shows how hard Tifa's left foot lands on the ground. The huge impact force brought huge pressure, and the floor of the ground where Tifa was standing at this time was not smooth, which led Tifa's left foot to gain a far more anti-slip ability than usual while landing on the ground, which ensured that Tifa could still stand firmly in place when his fist hit the door, even if the reaction force was very large, and would not be pushed or slipped.

"Click, click, poof" three sounds in a row, the first two sounds are the sound of the two layers of wood in the door being pierced by Tifa's fist, these two layers of planks are not thin or thick, under Tifa's fist, although they are not as crispy as biscuits, but they can only reduce a small part of the force of Tifa's fist, and nearly half of the force is not used to penetrate the door, but is consumed on the friction between the arm and the cave wall. The sharp wooden ballast on the cave wall, under a small relative speed, hung the sleeve of Tifa's right arm to shreds, but fortunately, Tifa reacted in time and immediately wrapped his right arm with energy. As for the last voice, others may not be able to hear what it is, but Tifa, who knows what is going on, can't help but stiffen his face.

......After the punch was completed, Tifa was stunned for a moment, and then put away the embarrassed look on his face. He let out a long breath. This punch. In terms of power alone. It's already comparable to Xiaolan's full-strength roundhouse kick, and in fact, in addition to his perception ability, Tifa didn't use any additional power when he hit this punch, and the only thing he used was the very weak flesh (body) strength of the body itself, but Rao was like this, and the door of Yuko Ikezawa's house was also pierced by Tifa, except because the door was only two layers of wooden planks that were not thick. It's also because of the technique used by Tifa, a very clever technique, a technique commonly used in Chinese kung fu to defeat the strong with the weak.

Why is there a weight class in boxing? In addition to the fact that under the same conditions, the muscle mass of a larger person is generally larger and the strength will be stronger, but also because of the different weights of each other, the friction between the body and the ground is different. People who are lightweight have less pressure on the ground and generally have less friction, while people who are heavier have the exact opposite. A lightweight person punches a heavier person, under the same external conditions. Even if the strength of the two is equal, the person who will be beaten back must be the one with the lower weight, because the friction between the light person and the ground is too small, and under the action of the huge reaction force, if you don't retreat or slide back, you can only fall straight to the ground. At the moment before the fist hit the door, the left foot generated a huge instantaneous impact due to the violent impact with the ground, thus obtaining a very large friction, which did not last for a long time to ensure that Tifa would not retreat or slide back due to the reaction force of the door, ensuring that the destructive force of the fist was all acting on the door.

The above process seems simple, it seems that it can be done with a wave of your hand, but in fact, it is very difficult for ordinary people to do this, and it is absolutely impossible without more than ten years of hard training. The left foot and the right fist start to move at the same time, it must be ensured that the left foot also just lands at the moment before the fist hits the target, if the left foot lands a little late, the fist does not have the corresponding friction to counteract the reaction force when it hits the target, and it will be pushed immediately, slide backwards or even fall, and if the left foot lands a little earlier, the friction generated by the impact between the left foot and the ground has begun to weaken, and it is also impossible to obtain enough friction, so it must be ensured that the left foot obtains the maximum friction at the same time. The reaction force on the right fist is also maximum.

In addition, at the same time as a punch to the door, Tifa's perception is fully open, in the field of perception, all the weak points on the door are exposed, and Tifa's brain melon allows her to instantly calculate the best landing point and the worst landing point of the fist, that is, the door is within the shroud range of Tifa's fist, and the front and rear two layers of planks add up to the most vulnerable and strong place, and Tifa naturally can't choose a strong place on the door to fight, so under Tifa's full punch, the door was directly pierced by Tifa, This is not over, you must know that behind the door is standing Ikezawa Yuko, when attacking the door, Tifa did not think about where his fist would hit after breaking through the door, although Tifa's fist after passing through the door, the strength has only a small half left, and there is not much destructive power, but the problem is that Tifa's fist hit Ikezawa Yuko's soft chest so badly, which is why Tifa's face will stiffen.

"Ah!!h After Tifa's fist hit the soft thing, the room was quiet at first, and the next moment, a terrible scream came out of the door with a hole, although the door was still closed at this time, with a good sound insulation effect, and the big hole in the door was also blocked by Tifa's body, and the sound was weakened a lot again, but this scream still made everyone who was staying in Yoko Okino's house tremble, such a terrible and loud scream was enough to prove that there was someone in Ikezawa Yuko's room, And this person is still standing behind the door, and the most important thing is that this voice is female, that is, if there is no accident, the person inside is Yuko Ikezawa. Hearing this voice, Maori and the others naturally showed excitement, but Officer Twilight's face couldn't help but sink, in his opinion, the worst situation still happened, Ikezawa Yuko was not only at home, but also hiding behind the door, she naturally couldn't stand behind the door to play, so the only explanation was that she was looking at the situation outside the door. If you want to say that Yuko Ikezawa is not suspicious, I'm afraid that Officer Twilight, who is eager to convict Yoko Okino, will not believe it at this time. Tifa, this damn woman!! Officer Twilight glared at Tifa fiercely, and then immediately looked away without a trace, although Officer Twilight didn't know who Tifa really was, and he didn't know what she was relying on, but he instinctively felt that Tifa was not easy to mess with, so he only dared to stare at Tifa secretly, and definitely didn't dare to confront him. (To be continued......)