Demon Slayer: I Earn Merit by Refining Spirits

Shangguan Hong traveled to a world where Demon Slayer: Kimetsu no Yaiba and Kabaneri of the Iron Fortress merged, inherited the largest sword forging workshop in Yano Castle and awakened the spirit refining system. One-color fire and two-color fire-refined spirits can make ordinary weapons stronger. Only three-color fire-refined swords with red cracked fire marks can pierce Kabane's heart membrane. By killing ghosts, crazy corpses and sinners with a refined sword, you can gain merit, and the merit will make Shangguan Hong continue to become stronger. Butterfly Kanae: "My Nichirin sword has changed. It has become connected with my heart. The fit in my hand has never been more obvious. There are even butterfly marks on it." Kamado Tanjiro: "Has this sword been refined? Mr. Steel Mound, if this sword breaks again, are you sure you won't hunt me down?" Samurai Kurusu: "The sword that has been refined is the hope for the future of mankind." Note: People who have never read the original work can also read this book. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.