When he arrives he can see CatDog full of wounds and nurse while being encircled by Menos and Gillian.
Xin wants to help them but seeing they are doing their best to fend off the Hollow around them, he stops.
He knows that everyone will face this kind of challenge in the future, helping them will not actually going to help them but only will make them weak.
It's much better if Xin just let them do their work and wait for the result of their struggle, maybe after this they can get a deserving reward.
Cero and other light particles fly everywhere, the Menos grande is too many for them but they still insist on fighting back.
For every second past, CatDog's life force weakened, but for some reason, Xin felt the will of them while struggling to fight those Adjuchas and Menos.
Every wound on their buddy makes them more lifely, Xin felt that they are weakening but they will be improving again and again.
Xin then felt something wrong in the air, he sensed and surprisingly discovered that there's a huge amount of Spiritual Energy around.
It is so much that it can already form small white butterflies flying around, the visual representation of how thick the Spiritual Energy is.
And it seems that the other Adjuchas and Menos are attracted to this energy and want things to devour it.
A Menos starts to devour the Spiritual Energy, but a small Cero hits it and destroys him completely.
"So CatDog want to evolve, nwo i understand why they keep fighting," Xin the transfer his thought t oCatDog.
He lets them fight wildly while Xin will collect the Spiritual Energy for them, doing this can make them both feel relief while fighting the enemy.
CatDog responds fast, then Xin starts collecting the Spiritual Energy around, like a vacuum clear, Xin took all of the energy in his hand enclosing it inside of his own Reiatsu forming a ball of energy.
Seeing Xin start collecting the energy, CatDog suddenly transformed into a 3 headed Hollow dog and started the grand massacre.
Using all their strength, they fire Cero indiscriminately, killing hundreds of Mentos and Adjuchas every minute.
Meanwhile, Xin who collected the Spiritual Energy that those hollow left felt that there's a black energy mix on the energy that he collected, so he tried to purify it by removing all the impurity inside of it.
Using his Reiatsu, he collects all the black energy on one side and starts to remove it from the pure one.
The process is too difficult, after all, the black energy is already mixed well in the pure energy, he needs to concentrate his all to remove it while at the same time absorbing all the spiritual energy around.
Suddenly a tall and bulky Arrancar appears
He has black spiked up hair, teal eyes, and his outfit consists of the standard Arrancar blouse and his Hollow mask remnant is a skull with a bull-like horn that covers the upper-left quarter of his face.
"Arrancar?"
An Arrancar is a Hollow that has removed its mask, thus gaining Shinigami-like powers.
Xin felt that the Spiritual Energy of this one is pretty good, and CatDog will have a hard time fighting him.
CatDog seems to notice the new enemy, without any thought, they fired 3 different Cero at the same time at the new enemy.
"A weakling trying to fight back? Die!" The tall man fired Cero from his mouth trying to kill CatDog in one move.
The Cero hit each other, but surprisingly, the Arrancar is being overpowered by CatDog's 3 Cero and about to hit.
"Iron Skin"
*BOOM!
The 3 colored Cero hit the Arrancar, but Xin saw that the Arrancar used "Iron Skin" before getting hit.
But still, Xin clearly see that the 1 arm of the Arrancar explode into a numerous piece,
"Damn you, I'm going to kill you!!," The Arrancar took the katana hanging around his waist and then commanded.
"Jabalí "Get them"!"
The Arracar's upper body and arms are all covered in armor. His mask remnant is replaced by a lower jaw positioned in front of his neck, leaving his face uncovered. He grows six hinged appendages from his back, which are used for both defense and attack.
CatDog suddenly dash straight to the Unknown Arrancar and brandish his claw that covers it with a metallic-like thing.
"Idiot! You cant wound me using your lousy call, Die stupid hybrid!"
The Arrancar transforms into a ball of bones and starts to spin around in a fast phase then shoot straight to CatDog, seeing Xin feel sorry for Arrancar.
He knows how deadly those claws are, that claw is not easy as he thinks, those claws are made from high intense vibrating energy that can tear even Xin's skin, fighting nCatDog head-on will only cause instant death for sure.
And just like Xin predicted, the unknown Arrancar died leaving a huge gaping hole in his chest, being ripped by CatDog's claw.
Xin hurry to collect the Spiritual Energy of the Arrancar and add it to the energy he already collected, he then catches CatDog who transformed into an arms size Hollow and put it in the ground.
"Meow~"
"Woof~"
"Take a rest first, i will purify this before you can absorb it," Xin said.
CatDog then starts to recuperate while Xin bussy his self purifying the ball of energy, then he start to compress it so that they can easily absorb it later.