After years of fighting, Naraku had finally been defeated, and peace had been restored to the land. Kagome made a selfless wish to banish the Sacred Jewel, ensuring that it could never again be used for evil. With the well now sealed she decided to stay with Inuyasha and start a new life in the village with him. This meant that Sango and Miroku, who had been burdened with the curse of his Wind Tunnel, could finally start a family without worrying about passing down his affliction. The once uncertain future now appeared bright and full of promise. Inuyasha was overjoyed that things were finally falling into place.
It took awhile for Inuyasha to notice that something was different with Kagome. Although she looked the same physically, there was something off with her holy powers. They appeared to be getting stronger with each passing day, and after being cooped up in the small hut together for a few months, it was becoming overwhelming. It was while he was out hunting, that he discovered that many powerful demons were being drawn to that power.
It had become a full-time job to keep demons from entering the village. They all came seeking the source of the mouthwatering scent of purity. Inuyasha's inner demon would emerge with every kill, urging him to take the priestess before another male does. Having that demon constantly whispering all the ways it could claim Kagome was making it harder for him to go back home. Although they had planned to get married and become mates, Inuyasha was worried he wouldn't be able to control himself and would end up harming Kagome. As Shippo took his first break from school to visit Kagome, Inuyasha couldn't help but feel a sense of relief when the young fox noticed Kagome's open aura and gently suggested that she suppress it.
After being away again for over a month, Inuyasha finally returned home. The sky was dark, and the air was thick with silence. When he entered the small hut, he saw Kagome sleeping on her futon, her chest rising and falling in a gentle rhythm. Seeing her like that warmed his heart, and for a moment he thought that maybe they could talk things out and make everything right again. Inuyasha moved closer to her, but then a new scent hit him, stopping him in his tracks. It was a scent he hadn't smelt in a long time, and it sent a shiver down his spine. Kagome was in heat.
His rabid beast was clawing and biting its way out of his skin, desperate to devour his female. Fangs bared and eyes glowing crimson, he clutched his head as he stumbled backward. He was terrified of losing control and hurting the woman he loved. As he looked around the small hut, he noticed a few embers glowing in the hearth. He stumbled over to them and grabbed the burning coals, using the pain to shock his body into fighting back against the monster inside.
The following day Kagome found him sitting in the Goshinboku and asked if they could talk. Deep down he had been secretly happy she had ended things with him. Ever since she took Shippo's advice fewer demons came near the village, but Inuyasha had continued to pull away wanting to keep her safe from his dark desires.
It wasn't until years later while visiting Sango and Miroku that they asked if he could deliver a message from them to Kagome. He had been hesitant at first, unsure of how he would react after denying his beast for so long. Seeing the desperate look in Sango's eyes as she rubbed her swollen belly broke his resolve and he agreed to play messenger.
Inuyasha did not anticipate encountering a strange man who claimed to be Kagome's protector. The thought that Kagome might move on never occurred to him, but it was now bringing back his sinister urges. As Kagome appeared from the trees, Inuyasha almost lost control. He was stunned to see that she had become even more beautiful since he last saw her. Before he could react and swing his sword, he found himself face-first on the ground.
After finally being alone with Kagome, Inuyasha took a moment to appreciate her sweet scent. However, everything after that moment passed by like a blur for him. His beast was furious that another male had scent-marked her. Upon finding the evidence in Kagome's bedroom, it nearly broke the half-demon, and he chose to lash out, spew accusations, and do anything to keep his beast from taking over.
Inuyasha was aware that his behavior wasn't rational, but in his mind, Kagome had chosen his half-brother Sesshoumaru over him. He regretted his actions and wished he had handled things differently. If he had known that his behavior would lead him to this moment, he would have acted differently. He wanted to explain to Kagome the truth behind his cruel and distant behavior. But now, all of that seemed irrelevant as he found himself chained to the floor with Sesshoumaru looming behind him.