Going back a bit in time, right to the moment in which Goshinki completely crashed against Inuyasha, both are dragged toward another area of the village for their next conflict.
Their two bodies were stuck together in an awkward grapple upon touching the ground, mainly Inuyasha who had been caught off guard during his attack against Kagura, thus finding himself at a clear disadvantage.
"Let me go already!"
"Hehehe, I am your- Gah!"
Stopping his words upon the brutal blow Inuyasha delivers to his rib, Goshinki tries to bite him with his triangular jaw, but being thrown on the ground works against him.
Such a situation is taken advantage of mercilessly by his opponent, the same one who seems to keep fresh the street fight he had previously with Asahiko, so he turns his limbs into weapons of mass destruction.
Fists fly toward the ribs, kicks are sent toward lower areas and there was even the occasional headbutt just in case, forcing Goshinki to retreat wounded from the fight.
"Hahaha, is that all? I suppose I'll finish you off first and then go after that unpleasant woman!"
"Boasting too much is not good, Inuyasha. Or is it perhaps the only way you have to cope with the betrayal of your beloved Kikyo?"
"Naraku… Damn you… Taste my Iron Claws!"
Exploding in fury upon hearing Naraku's voice come out from the creature's stinking mouth, in addition to touching the unhealed wound that is the "betrayal" by Kikyo, he rushes forward and sends demonic energy into the nails of his hands.
Because of the latter his nails become stronger than the steel of swords, while all his physical capabilities gain a general benefit, transforming Inuyasha into a machine of pure physical attack within seconds.
But Goshinki was not an idiot, so upon seeing how Inuyasha lunges at him and being able to read his mind, where his attack is truly going, he calmly waits before sending his own.
It was a powerful direct blow that his enormous purple hand delivered to Inuyasha, sending him mercilessly toward the remains of a nearby house and ending all his momentum immediately.
"Get up, Inuyasha. I can feel that you did not die from that"
"..."
"If you want you can do it, I wi-"
"Fire Claws!"
Staining his nails with his own fresh blood, the same one flowing from the wounds now reopened by the blow, Inuyasha slashes forward with his hand and dozens of blood-colored crescents fly toward Goshinki.
That desperate attack is not followed by another offensive move on his part, but instead Inuyasha quickly rises from the rubble where he was and begins to run.
It was not a desperate escape on his part, at least that is how Goshinki can feel it with his mind reading, but rather Inuyasha seeks to recover Iron Fang which had fallen from him during the initial clash between the two.
*Boom Boom Boom*
Along with the explosions generated by the "Fire Claws" technique, an enormous figure blurs and runs on all fours behind Inuyasha, trying to intercept his figure midway.
Such a thing is easily noticed by him without even having to look back, Goshinki is not very discreet to say the least, so once again he digs his nails into his flesh and sends several red crescents.
"Predictable, Inuyasha. Far too predictable!"
Jumping toward the sky to dodge the incoming attack, Goshinki opens his triangular jaw and attempts to fall like a bird of prey and tear Inuyasha's head from his neck.
Luckily for everyone present, the latter trusts his instincts more than his own thoughts, so he dodges the attack by rolling and with one final sprint reaches Iron Fang.
Upon touching it with his hand, the sword goes from being a simple worn katana to the powerful Iron Fang that everyone knows, granting absolute confidence to Inuyasha.
"You should have taken advantage, Goshinki. Now I hope you're ready for me to wipe the floor with you!"
"Hehehe, I hope you can surprise me, Inuyasha!"
"Stop using that damn voice already!"
Charging at full speed toward one another without hesitation, Goshinki with his jaw wide open and Inuyasha wielding Iron Fang, an epic clash between the two happens instantly.
It was the coldness of steel against the biology of enamel, one of the three swords of conquest against the teeth of a beast… Which resist. Yes, Goshinki managed to stop Iron Fang with his teeth.
"Wh, what!"
"Hahaha, HAHAHA!. Why the surprise, Inuyasha!"
"You… Iron Fang"
Ignoring the surroundings due to how illogical the situation presented before his eyes as real was, his sword had been stopped by a pair of teeth, Inuyasha barely recomposes himself upon noticing the vibration coming from Iron Fang.
Goshinki was gnawing on the blade with his serrated teeth, making this legendary sword release unpleasant screeches as it was deformed by brute force, terrifying Inuyasha so much that he soon tries to free it from the grip.
But it was a completely useless movement on his part, because no matter how much effort he put into trying to free Iron Fang, Goshinki's jaws do not release it and only increase the tearing screeches of the metallic blade.
*Crack Crack ¡Crack!*
Together with the last great "Crack" that spreads in the darkness of the night like a heavy curse, Iron Fang, one of the three swords of conquest… Was broken in half by Goshinki's jaw!
This directly sends Inuyasha into a state of shock, the same one who steps back a few paces still holding half of the sword in hand. He could not believe it, his sword, the legacy of his father, the strongest weapon he had seen to date was now broken!
Together with that truth his heart began to beat at full speed and like a drum in his ears, while his pair of amber pupils became like pins. While that happens sweat pours from all over his body, while his body temperature increases and he begins to hyperventilate.
"Hahaha, ah… What divine despair! Tell me, Inuyasha, what are you feeling right now?"
"..."
"Ahh… I can tell you. Despair, pain, fear, doubts… What a delicious emotional brew you have there!"
Staining the ground with the saliva emerging from his triangular jaw, Goshinki spits the upper fragment of Iron Fang to the side and puts a sadistic smile on his filthy face.
He was enjoying this to the fullest, after all he still remains an extension of Naraku, so hatred toward Inuyasha is the order of the day.
Due to the aforementioned he restrains himself, he could not end Inuyasha's life just like that, he had to give him more pain… More suffering!
With those thoughts in mind his long purple hand completely wraps around the stunned Inuyasha without resistance, while his thumb rests over his head and begins to squeeze.
"Agh… Ah…"
"Yes, beg for it to stop. Why must you suffer so much? Just say it and-. Wa, what is this!"
"Go. Shin. Ki"
Having his face suddenly covered by his long white hair, a dark and hoarse voice begins to emanate from Inuyasha. Such pronunciation filled with evil freezes Goshinki's blood, while his teeth begin to chatter.
What pierces through his body is something primitive and unforgettable, something he adores generating in his victims for his own twisted pleasure… Fear, pure and unadulterated terror.
"Hehehe, what's wrong, Goshinki? I can smell your fear… And I think I like it"
"You, you no. Ahh!"
"¡Hahaha!"
Tearing apart Goshinki's entire purple limb with a simple movement of his hand, Inuyasha's feet touch the ground once more and a monstrous smile slowly spreads across his face.
Alongside that display of brutal cruelty, Inuyasha's eyes change into a combination of red and green, while a pair of irregular purple lines almost identical to Sesshōmaru's become visible on his cheeks.
All the actions carried out by him until now screamed "demon", but his energy signature is not far behind, but instead becomes colder and more irrational like that of a true demon.
"Impossible. You are only a Half-Demon!"
"And you are only food, Goshinki. Iron Claws!"
"¡AGHH!"
Letting out a horrendous scream that destroys the tranquility of the night, more than it already was, Goshinki can only helplessly watch as his body is torn apart piece by piece.
The legs were the first to disappear, then the arm he still had followed, and afterward all the internal organs, creating one of the most macabre scenes beneath the moonlight.