When the gravity is released, Zenitsu Agatsuma's Breathing of Thunder will probably have another breakthrough. Kanao Kurika, she practiced and trained with Miyamoto Musashi. Although she has extraordinary vision, she can predict the opponent's next move by observing the opponent's shoulders, eyesight, fingertips, elbows, knees, etc. But he is not flexible in combat and needs to learn to be more cunning from Miyamoto Musashi. When practicing with Miyamoto Musashi, he is often countered by him because he trusts what he sees too much. "This is not cunning, this is the art of war! It's the art of war! Don't talk nonsense if you don't understand it!" Miyamoto Musashi retorted loudly to this, saying that if she were not still young and had not experienced much, she would have written a book about the military tactics she had learned. Shirou Emiya just smiled slightly. Miyamoto Musashi, in addition to being a master of swordsmanship, is also a master of military tactics. This is beyond doubt. Otherwise, he would not have chosen to let Kanao Kurikara learn more from Miyamoto Musashi. Fushigawa Genya was practicing shooting alone. Compared with swords, guns can be more effective in a short period of time. What's more, he has experience in using guns and has his own unique fighting style when fighting against evil spirits. Techniques like breathing techniques or swordsmanship like Niten Ichiryu are basically impossible to master in a short period of time unless one is a genius. Even though Shirou Emiya can now read the sword skills of those swordsmen through projection, there are only a few that he can use now, and most of them cannot be used under non-projection conditions.

As for Tanjiro Kamado, he spent most of his time practicing enhanced magic and Sun Breathing with his Servant. The rest of the time was basically spent sparring with Shirou Emiya, enriching his practical experience in dealing with powerful enemies. The large number of weapons provided by Shirou Emiya to fight against evil spirits gave them a considerable period of stability, but it would only be a short period of stability. After all, Shirou Emiya can't stay here forever, and those evil spirits can't just sit there and do nothing from beginning to end. The two sides have been fighting openly and secretly. During this period, no one knows how many evil spirits have been promoted to upper ranks, and no one knows how many upper and lower ranks have been cut off. “Chirp, chirp, chirp!!!” The sound of birds singing came from the sky. It was the sound of crows singing, which was unique to the sound column. Such sound proved that important information was being transmitted. Chapter 870: The Counterattack Begins The sun gradually rises from the east. The cold air gradually became warm, making the originally lonely atmosphere quite lively. If the evil spirits choose to keep hiding, then humans, who only have such a small place to live, will not be able to persist. To surround without attacking, to attack without fighting, this is the best strategy. So in this war, it was not the evil spirits who were anxious, but them. One year, two years, ten years, a hundred years. The evil spirits have plenty of time to wait. But for people living in towns, food has begun to become increasingly scarce. Let alone ten years, they may only be able to survive for a few months. Planting an entire town with wisteria trees naturally comes at a price. Moreover, even if such a small piece of land is fully planted with food, it cannot sustain the entire city's population for a long time. It is not enough to just fend off the attacks of evil spirits. If you want to break out of such an almost fatal situation, you must be prepared to fight to the death and eliminate the evil spirits fundamentally. That is to say - to kill Muzan Kibutsuji.

"These are the places where Muzan Kibutsuji is hiding, Lord Emiya." Deep in a forest, with the leaves rustling in the wind, the Sound Pillar spoke to Shirou Emiya who was standing beside him, as if he had lost all his emotions. “Are these the only places?” Shirou Emiya tilted his head slightly to look. At this distance, he could clearly see the extremely haggard and cold face of the Sound Pillar. Just like a real, ruthless ninja who will do whatever it takes to fulfill his mission. "If there were more time—" He didn't finish his words, but the haggard look on his face already told Emiya Shirou the answer. Emiya Jishiro did not correct the Sound Pillar's address. On the one hand, he did not care about the address. Miyamoto Musashi had been calling him grandpa for so long, so he was too lazy to correct him. On the other hand, the heart of the Sound Pillar is dead, and he lives in this world like a walking corpse. I'm afraid that apart from killing Muzan Kibutsuji, he has no other thoughts. Tanjiro and the others didn't know what words to say to comfort them, nor did they know what to do. Because if these things happened to them, they would just be like a sound column, stifling their own emotions. The Sound Pillar - Tengen Uzui, can be said to be the only ninja in this entire era, and the only human who can detect the movements of the outside world at night. Many times, large-scale activities of evil spirits were known to humans in advance. This was not due to Minamoto no Raikou's keen perception of war, but the information sent back by the Sound Pillar. He learned the information about Emiya Shirou and Miyamoto Musashi from the villagers and passed it on to Minamoto no Raikou. The town was prepared in advance and it was the secret sentries he trained that discovered the trace of Muzan Kibutsuji. It is even said that Ibaraki-douji and Shuten-douji's multiple ambushes of Minamoto no Raikou were all detected in advance by the Sound Pillar. He lives with ghosts in the dark, and is the only one who can lead a team to obtain intelligence on the activities of evil ghosts at night. If the Sound Column dies, then at night, humans will be almost the same as being blind. Because he is the only one who has the ability to obtain intelligence. Whether it is the skills of a ninja or the detection and analysis of the activities of evil spirits, these all take time to develop. And humans just don't have that much time. So he understood that he had to stay alive, even if it meant sacrificing all the companions he brought with him, he had to stay alive. In such an almost desperate situation, he shouldered much more than others imagined. How he once hated those people who were so inhumane and regarded life as nothing. And now, he has finally become the person he hates the most. Even if it is for the survival of mankind. "Let's get started before night falls!" Shirou Emiya didn't say much. If he were in the position of the Sound Pillar, what choice would he make?

Living is much harder than dying. Shirou Emiya's expression became calm as black mud continued to surge out from under his feet and slowly seeped into the ground. The [Miracle Girl] who had the ability to hold evil spirits and had spatial abilities had already been killed by Shirou Emiya. If it were like before, when evil spirits were scarce and there might not be one in a town, then evil spirits could hide almost anywhere. Inside houses, in caves, in forests, under the soil, any place where the sun doesn't shine is almost always a hiding place for evil spirits. But now the number of evil spirits has far exceeded that of humans, and there are not so many places to hide. Those houses that were not destroyed could naturally accommodate such a large number of evil spirits. After all, the number of evil spirits must be less than the number of humans before the war. Most people have a place to live, and the same is true after they are transformed into evil spirits. However, because there were more living people than evil spirits, the Demon Slayer Corps naturally had various considerations when taking action. But now it is different. The owners of those houses are either dead or have turned into evil spirits. Even if there are humans imprisoned in the houses, there is no need to worry about them. Just destroy them directly. The sun will purify everything. After tens of thousands of evil ghosts have died, most of them will not choose houses as their residence. It is too easy to be caught in the daytime and they have no ability to resist at all. As for forests and caves, the number of places they can accommodate is extremely limited. If one wants to accommodate such a large number of evil spirits in a place that is not exposed to the sun, the easiest place to think of is underground. Uzui Tengen has a keen sense of hearing and can hear even the slightest sound. He can determine the location of evil spirits at night based on the direction they leave and the place where they disappear. You can also use your hearing to hear the noises coming from underground and then confirm them. "What it is!?" "No, I can't move!!" "Is it blood demon magic? Why!?" "Master Wuhan, Master Wuhan!!!" "Ah ah ah ah ah ah ah!" The screams of the evil spirits continued to echo underground, reaching Emiya Shirou's ears through the black mud. It was as if those powerless humans were being chased by evil spirits. The black mud showed no mercy and swallowed up all the evil spirits. From the moment you become a demon, you have lost your human identity. Those who don't want to become evil spirits are either already dead or resolutely die at the hands of the Demon Slayer Corps after being transformed into evil spirits. Under such circumstances, the black mud surged towards the fleeing evil spirits like a tsunami, swallowing everything. They are like trapped beasts, able to only run around in the underground world they created. Once they come out, they will be burned to death by the sun. "All the evil spirits here have been eliminated. We can send people down to rescue the captives!" In just a few minutes, Shirou Emiya wiped out all the evil spirits underground.

Chapter 871: The Ghost King Who Always Wants to Survive Underground, there are humans being kept in captivity. It's not like the world is populated only by humans living in towns filled with wisteria trees. There are still wanderers in various places who are hiding from evil spirits every day. Shirou Emiya once encountered those vagrants on the way to the flower street with Miyamoto Musashi. There are even some remote villages that have not been found by evil spirits and still exist in the world. But if the last barrier against evil spirits is broken, then this world will really become a world of evil spirits. Human beings will only become livestock kept by evil spirits as they are now. If there weren't many captive humans underground, Shirou Emiya would probably have chosen a faster way to exterminate them. [Excalibur Galatine] King Arthur's holy sword Excalibur gathers the light of the planets, while Lord Gawain's holy sword Galatine manifests the blazing rays of the sun. The hilt of the sword contains a solar sword that resembles the sun. Those evil spirits will be burned to ashes just by looking at it. "It looks like it's just a small evil ghost settlement." The Sound Pillar frowned slightly. After all, Muzan Kibutsuji could read the information of all the evil spirits transformed by his blood. They might have already known that this stronghold had been destroyed. The opportunity only lasts one day. But in reality, there is only that first chance. Having already learned what they are doing, Muzan Kibutsuji will naturally react accordingly. Not to mention that Ibaraki-douji and Shuten-douji are not afraid of sunlight, and can exert their full strength even when the sun is shining brightly. However, they had already prepared for a fierce battle at night. This way, they can destroy the enemy's strongholds one by one, and also force those evil spirits who have been hiding to retreat. They couldn't possibly wait until the next day and allow Emiya Shirou to devour one stronghold after another without hindrance. The food in the town will run out and the army will not be able to get sufficient supplies. If no solution is found, as time goes by, there is only one outcome waiting for mankind - destruction. "Sh-!" With a whistle from Uzui Tengen, a black crow came rushing from the sky and landed steadily on his shoulder. After a few short seconds, it immediately flew into the air. "The next place——" Uzui Tengen groaned softly and immediately disappeared from the spot. The only two people responsible for destroying these evil spirit strongholds are Tengen Uzui and Shirou Emiya. The rest of the people stayed in the town waiting for Minamoto no Raikou's instructions.

After all, everyone can see the strength of Shirou Emiya. It can be said that the entire Demon Slayer Corps, plus Minamoto no Raikou and Miyamoto Musashi, will not be a match for Shirou Emiya. Let’s talk about Yoriichi Tsugikoku who was in hiding and only seen by Shirou Emiya and Musashi Miyamoto. Miyamoto Musashi said that he was killed hundreds of times by Shirou Emiya who used the Breathing of the Sun while holding the scarlet sword. She herself does not have the confidence to face Yoriichi Tsugakuni, but she is very confident that her grandfather can easily deal with him. However, the other party seemed to know that Shirou Emiya was very powerful and could not be confronted head-on, so he kept hiding.