Yoriichi was the identical younger dual of Kokushibo – Michikatsu in this case since this is title you to Yoriichi know him since the. In their youngsters, Michikatsu constantly checked Yoriichi since inferior to your. If the twins was indeed born, Yoriichi try ostracized from their aunt of the grotesque mark he bore, while Michikatsu is actually chose to be this new replacement of your own friends. He pitied Yoriichi for what he considered childish choices, sparked to the by the exactly how Yoriichi manage stick to their mother. Regardless of this, Michikatsu sought out off their cure for communicate with and interact along with his young sibling, actually risking beatings using their dad which forbade relations within one or two. On one event, Michikatsu snuck when you look at the and offered Yoriichi a homemade flute. He informed him to spend involved of course, if he was into the difficulties, saying that he would become immediately to protect their young brother. 
Michikatsu is actually disrupted by the their brother’s smile and confused https://i.pinimg.com/originals/67/04/e9/6704e9aebba61ba85aad714b71b85190.jpg” alt=”app incontri sui 40 “> about his brother’s cherishing off just what the guy considered a great “bit of rubbish”
When Yoriichi are revealed for a good prodigious, absolute skill having swordsmanship, the new brothers’ opportunities in the home had been corrected. Michikatsu is not any longer said to be this new replacement of your own loved ones, trying out his brother’s short, remote place if you’re Yoriichi grabbed their place since the family’s heir. So it experiences fueled Michikatsu’s desire to learn the methods of the sword and you may would stoke the new preparing feelings of jealousy towards the their sibling.
As he said his goodbyes, Yoriichi introduced the newest flute Michikatsu had provided to him
When its mommy passed away instantly, Yoriichi informed Michikatsu he might be leaving family. He smiled, holding they intimate, advising Michikatsu that it was beloved which he idea of it as your. Immediately following understanding their mom’s diary, Michikatsu unearthed that Yoriichi was not dangling so you’re able to his mother however, have been support the lady, that have identified precisely how their disease weakened the woman. It bottom line infuriates Michikatsu, a deep hatred and you may envy toward Yoriichi providing means contained in this him, to the point where the guy wants Yoriichi had not ever been produced and you can psychologically begs to possess your to help you pass away. 
Which disliked just increased as he was spared regarding a demon because of the Yoriichi himself, who had become more effective. After leaving his family, the guy joined the Demon Slayer Corps to battle close to their aunt and get stronger. Michikatsu himself made an effort to understand Yoriichi’s Sunlight Breathing but is not able to help you, rather playing with a good derivation you to turned called Moonlight Breathing. Michikatsu after that turns for the a devil through Muzan once lamenting his failure so you can previously surpass Yoriichi within the strength. 60 age later, the 2 carry out satisfy for the last big date. Michikatsu is threatened by Yoriichi’s mourning out of his choice, however, try still frightened up on enjoying him willing to attack. Whenever Yoriichi hit, Kokushibo is actually too sluggish to react and is almost beheaded. Waiting around for the second hit, he know Yoriichi had passed away regarding later years and you will angrily slash his human body toward sense of inferiority the guy achieved during their lifetime.
This can be heavily implied because of the tears missing from the him just after knowing that the new flute he had skilled his sister had stayed with Yorichii after all this time around. Therefore, Michikatsu couldn’t spend the new flute after the latter’s demise, and you can remaining they into the their people for years and years afterwards up until his very own passing. In the course of time, in the final moments, he acknowledges his sis try beyond him in every means and requested him for why he was also born.