Demon Slayer Starts a System

He Qian returned to his previous life and was actually reborn in Demon Slayer, because this time he was destined to be extraordinary. He turned out to be Tanjiro's younger brother, the one who holds the script, but things are not as simple as he thought. The sudden changes, terrifying vampires, and unknown creatures are pulling him into the abyss. The ten major systems are preparing for him. If he wants to do it, he must be the man who holds the destiny. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.