Demon Slayer: Kimetsu No Yaiba, Master the Arsenal at the Beginning

The protagonist Li Tian is an ordinary young man. He has been without his parents since he was a child, leaving only a mysterious ring. But the ring has a shocking secret that he doesn't know. A special accident caused him to travel into the world of Demon Slayer: Kimetsu no Yaiba. As soon as he arrived here, he encountered a ferocious-looking ghost. At a loss what to do, he could only turn around and run away. But an accident unlocks the system, and the secret of the ring passed down from generation to generation in his family. (The strongest arsenal) Time travel? Two plug-ins? A system, an arsenal. At this time, Li Tian smiled. Li Tian: "Kibutsuji Muzan? I'm not afraid at all, okay?" "The strongest pillar of the Demon Slayer Squad? That's it?"