The Invincible Soul of Me Travels to the World of Demon Annihilation

[Two male protagonists/no female protagonist/will not simply tell the protagonist's strength/group portrait/has an emotional line, but is not the protagonist] Recommended for those who have read the original work or anime, as some plots will be omitted. After staying up late to clear 200 episodes of "Dark Souls" and chasing the final volume of "Demon Slayer: Kimetsu no Yaiba", Chang'an was swept into another world by white light, and woke up as the mysterious traveler Tanjiro rescued from the snow. The soul system is activated, and the inheritance of the King of Xin, the royal power of Elden, and the legendary hunter skills are all awakened! Holding the Immortal Zhan Chuanwan in his hand and carrying countless soul weapons, he can combine the Golden Law and the Epileptic Fire to create a unique breathing method. Join the Demon Slayer Team, kill four lower strings in a row in one month, break the record of the fastest pillar, and become the feared pillar of the nine pillars! The Infinite Train rushes to the rescue of Anjuro in Purgatory and rewrites the fate of Flame Pillar's fall; Yu Guo joins hands with Sound Pillar to crush the Land of Wind; the Blacksmith Village witnesses Nezuko defeating the sun and helps everyone break through their limits. In order to prove the breath of the sun, I even traveled back to the Warring States Period! Twelve Ghost Moons were reduced to experience packs under his sword, and Wu Mei's thousand-year rule was on the verge of collapse. When the soul-based boss came to the world of ghosts and demons, Chang'an stood up with his sword in hand: "My sword kills evil ghosts and protects the common people. This ghost-killing world will be rewritten by me!" (Note, Sekiro is not a Souls game, but because it mainly uses Japanese swords, Sekiro's sword skills will become the protagonist's main method of fighting) (Also, many settings are created by me. For example, holy attributes and other attributes can cause more effective damage to ghosts than the Sun Blade. Just take a look.)