By feeling the density of the chakra around the three masked people Ji Yun deduced three of them are in the mortal realm 3rd stage while the number one in peak stage and other two in the middle stage.
[I am going to refer the masked persons as number 1,2 and 3 so that you guys will understand easy instead of masked person 1, 2 and 3.]
A ball of fire formed and swiftly shot from Number 1 towards the fleeing Yu Mengxi. Despair passed the girl's eyes and she slowly closed her eyes resigned it to fate. she was heavily injured and used up a large amount of chakra. she was running purely with the willpower and her physical strength. Yu Mengxi was only in Peak 2nd stage of the mortal realm. Even if she is in perfect condition she has to use everything in her body to block this attack.
Ji Yun who was stealthily following them astonished by the ball of fire this the first time he saw someone use their Elemental chakra technique and he can feel, it's extremely powerful but not enough to hurt his physical body. He can clearly see the girl will not be able to block the attack so 'its time for me to act and save the beauty in distress, hehe.'
Ji Yun smilingly lifted his hand and punched towards the fireball and it instantly disappeared. You can see Ji Yun's hand haven't even touched the fireball and just a force from his fist dispersed the fire pursuing behind the girl's back.
Ji Yun looked at his hand speechless he thought when his punch meets the fire his physical strength will disperse it. But he didn't except just the force from his punch will disperse the attack. He also doesn't know that the attacker used the full force or not. Ji Yun was sure the attacker at least used 80 percent of his strength. He began to deeply admire his Physical cultivation.
"Many thanks for saving me…" The Yu Mengxi had already come close, her voice was cold and her body was on the verge of collapse. She appeared behind Ji Yun and sat down near the near. It's not that she doesn't want to fight, she was injured and used up all of her chakras. When someone suddenly appeared and saved her, she couldn't believe her eyes, in such a remote location she encountered someone who could save her.
What she saw was the black-clothed youth 1.8 meter in height firmly standing before the 3 attackers. Yu Mengxi thought he was an expert and when she tried to deduce his strength she couldn't sense a single bit of chakra in the youth's body.
"Boy, Do you want to go against us?" The Masked persons chasing after the girl stopped by ten-meter distance. Number one did not immediately attack, his eyes swept across Ji Yun and checked the surroundings if there are more people, and he spoke with a cold tone. He was sure the youth opposite to him didn't use any chakra but easily able to disperse his attack. Even if the other person was Peak Mortal stage 3 practitioner they altleast need to use bit of their chakra to disperse his technique. Even though he didn't use any killer techniques he was sure he won't be able to defeat the youth before him.
Then he silently formulated a plan in his mind to escape. He was very confident in his techniques and will be able to flee.
Ji Yun smiled towards Yu Mengxi and chuckled, "It's nothing much, sister fairy. I was just passing by and noticed their inhumanity trying to kill such a beauty." without even bothered to reply to number one he began to chat with the girl.
When the Ji Yun words entered Yu Mengxi's ear it sounded like an old man in his sixties trying to coax a little girl. Yu Mengxi got goosebumps all over her body. She suddenly thought of the phrase trying to escape from a wolf but 'have got a tiger by the tail'. Seeing the distrustful expression on Yu Mengxi Ji Yun knows he failed to court her.
"Copper hand and number 3; You both attack him at the same time and use everything you have on your attacks." Number one coldly said to both of them.
"Hehe, Boy I am going to show you when others meddle into our business their only outcome is death." Copper hand laughed and said with infuriated expression. From the first time, he saw Yu Mengxi he set her sight on her. But now a boy came at the last minute to disturb him, he was completely enraged.
He concentrated his elemental chakra into his right arm and smashed towards Ji Yun's face. The right arm where his chakra is gathered turned into copper, his skin is glowing with copper color.
"You are going to attack me with such a little strength. Hehe."
Ji Yun smirked as he brought up his right hand, which suddenly shined with a layer of golden light. His hand turned into a fist and struck straight towards copper hand's(Number 2) fist, two simple fists collided, with no one using any elemental skill. When both the fist are going to meet, copper hands fist turned into many copper spikes.
"Haha this my new skill, Have a taste of my 'Thousand Copper Spike'."
Number one who was standing in the same place said with absolute certainty, "If copper hand used his elemental chakra even I won't be able to meet it head-on with my physical strength. This boy is courting death."
As the two of their right fists collided, there was only a sound of *crack* as Copper hands' fist cracked and his elemental chakra dispersed. Everyone could see his hand bent like jelly without any bones. He revealed an ugly and fearful expression but Ji Yun's left fist suddenly smashed towards copper hand's abdomen but this time, there was no elemental chakra protecting his abdomen.
*BANG*
Ji Yun's left fist severely banged into Copper hand's abdomen. Copper hands expression immediately became horrible, barely letting out a sound as he was sent flying in a straight line and fiercely smashed onto the tree. He coughed out a mouthful of blood and kneeled on the ground with both hands clutching his stomach, and finally lost his consciousness.
Everyone was dumbstruck by what happened. Especially Yu Mengxi just a casual punch from this young man destroyed a mortal realm stage 3 practitioner completely. She was very astonished, just from the physical strength alone he was this powerful then if he used his elemental chakra how strong would he be.
Both number 1 and number 3 reacted, number one hurriedly began to instruct Number 3, "Number three, use your water elemental shield and stall him. I will prepare my nine world sun fire and attack him from behind." Both of them began to move out.
While number three was gathered his elemental chakra and created a whirlpool of water around him to protect him from any physical attack. When he turned around to see whether the number one's attack is prepared he only saw number one take out an array disc and gathered his chakra into the array.
"Number three, I got no choice we can't battle and win him. At least one of us need to be alive and report it to the young master. I will surely avenge your death." Saying this Number one completely disappeared from the spot. Seeing the things unfolded in front of him, number 3 three didn't say anything only gave a murderous look towards the spot he disappeared and prepared to fight Ji Yun.
Ji Yun already expected the remaining two of them will escape once he showed his strength. But he didn't think one person will use the other as scapegoat and escape. Even if both of them escaped together Ji Yun wouldn't have chased them, he just wanted to save the girl. Because both of them are her enemies if it's his enemies he will surely kill all of them.
"He called you number 3, so I will also call you that. Number 3, I don't have the interest to fight you. I just want to save the girl. But if you adamant in fighting me, I will not show mercy. It's your choice". Ji Yun said to number three. Number three only coldly looked towards Ji Yun and said,
"You are very strong for your age without using any chakra, but you are also very lucky; you didn't fight me. Otherwise, I would have been forced to use one of my protective treasures. Mengxi, I thought I will save you in the last minute but I didn't expect a hero will arrive. We will meet again in the future, Hero...". After that number three's figure flickered and nowhere to be seen.
Yu Mengxi and Ji Yun both surprised because the voice they heard is a young female voice which is very sweet to hear and you can also feel there is a hint of playfulness in it. One can clearly see number three is a naughty and mischievous girl from powerful family. Ji Yun began to sweat thankfully he didn't attack otherwise who knows what kind of attack technique she had.
"Sister Fairy, do you know her." Ji Yun asked towards Yu Mengxi. Even though he knows her name he liked to call her a fairy.