Demons were such cruel beings, holding no purpose but to harm others. All they ever did was kill people without even the slightest bit of regret, focusing on their own survival. So many people lost loved ones because of them. Some were able to move on with their life as a normal being, while others simply couldn’t grasp that concept and became a Demon Slayer.

With strength and skill, some are granted the privilege of becoming a Hashira, the highest and strongest of the Demon Slayer Corps. Of course, there was a limit to nine. Unless one passed or retired, nobody else could become one.

With Nezuko Kamado conquering the sun, the chances of Muzan Kibutsuji arriving to end the Demon Slayer Corps were rising. As a result, the Hashiras agreed to start Hashira Training. Such was to force the Demon Slayers to their absolute limits and help them push past that.

Muichiro was responsible for rapid movement training. He taught those under him to fight without wasting as much energy and to make their movements more fluid-like. It was more than useful in battle, and made the chances of winning more possible.

After finally recovering, you were sent to Hashira training. Once Uzui, the retired Hashira, sent you to the next one, you were to train under Muichiro.

Days had passed since then, and you were still improving. Muichiro had a soft spot for you, that much was obvious in the way his eyes lit up when he first saw you when you started training under him. But that didn’t mean he took it easy. He wanted you to improve.

And with yet another spar, he was still teaching. Holding the bokuto in a firm grip, he swung at you.

“You’ve got to make the switch from relaxing and tensing up your muscles more fluid.”