Scrap Boss's Fury

The death of the lean Evil Spirit was also witnessed by Muzan, who had been watching from the shadows. Seeing Rota's contemptuous expression, Muzan was filled with rage.

Inside a dark room, Muzan angrily opened his crimson demon eyes, an instinctively chilling aura radiating from him.

"Old bastard, I, Kibutsuji Muzan, will make you deeply understand the terror of Evil Spirits!"

Muzan had yet to face Tsugikuni Yoriichi head-on, so there was no question of him being beaten into despair. Overall, Muzan was still brimming with confidence. Otherwise, he would never have come up with a plan to actively invade the Demon Slayer Corps Headquarters.

Rage was rage, but Muzan had not lost his most basic sense of reason. From Rota's performance just now, Muzan could tell that Rota himself was extremely powerful. Rashly attacking would likely do more harm than good; he had to devise a foolproof plan.

"Looks like it is time to improve the quality of the demons. The swordsmen are growing stronger by the day, and we cannot fall behind!"

Although Muzan did not know Rota's origins, the fact that he was mixed in with the Demon Slayer Corps essentially made him one of them.

After the Tsugikuni brothers joined the Demon Slayer Corps, their strength had advanced by leaps and bounds. Coupled with the creation of Breathing Techniques, the strength of the Corps' swordsmen continued to rise.

Ordinary Evil Spirits were already finding it difficult to deal with Demon Slayer Corps swordsmen. At a time like this, the overall strength of demons had to be improved.

As the mastermind behind everything, Muzan could not possibly personally act every time he encountered some insignificant swordsman, could he? With all this in mind, a sinister smile appeared on Muzan's face. He bared his teeth and said, "Demon