for the first time in so many years the situation has changed a lot. Nezuko - Tanjiro's sister was able to overcome the sun, it was not yet clear whether she would improve as a demon or become a human again, but one thing was clear for sure - Muzan would try by all means to take her for himself in order to overcome the sun.
therefore, a Hashira meeting was held, and then training from Hashira. all fighters are scattered into groups and after that undergo training from one Hashira, and then from another, and so on until the last. Both demon fighters and Hashira train stronger because of this.
and so - you finally started training with tengen with Muichiro. you thought that there was no one worse than tengen, but when you started training with Tokoto, you realized how difficult it was with him. his words were cold, according to others, they hurt the heart, and his movements were so fast that his next step was not clear.
..he was ahead of you in training again and hit you in the neck with a wooden blade, watching you fall to your knees. Muichiro silently looked at you with a steady, cold gaze and then said in the same cold and calm tone;
"The demon would have killed you three times already."