An Upper Rank Demon has been defeated for the first time in a hundred years by Uzui, Tanjiro and his comrades' effort. This news causes a ripple effect not only among the members of the Demon Slayer Corps, but also the Upper Rank Demons, who have been summoned by Muzan Kibutsuji. Meanwhile, Tanjiro is recovering at the Butterfly Mansion when he discovers that he has upset his swordsmith Haganezuka after chipping his sword and decides to head to the village where the swordsmiths live to talk to him in person.
A perfect unchanging state
that lasts forever.
.إنّ الشّيء الثّابت المثاليّ يدوم للأبد
Einen perfekten unabänderlichen Zustand,
der ewig anhält.
Permanecer inmutable en un estado
de perfección para toda la eternidad.
para que todo sea siempre perfecto
y nunca cambie.
Atteindre la perfection,
pour l’éternité.
एक पूरी तरह अपरिवर्तनशील अवस्था
जो हमेशा बनी रहती है।
Ciò che si trova nella sua forma perfetta 
e vi resta per sempre.
Manter o mesmo status quo eternamente.
Извечное пребывание
в своём идеальном состоянии!