After Traveling Through Time, He Became the Third Brother and Joined the Demon Slayer Corps!

I, an ordinary handsome guy, woke up and found that I had traveled to the world of Demon Slayer: Kimetsu no Yaiba, and I had awakened the system necessary for the time traveler. When I thought that various breathing methods started to kill Wuhan randomly, I found that the ghost system was awakened, so let's take it for granted, it's our third brother's Sanyi nest seat, Wubai, right! Wuxian: Damn it, Shang Xian San rebelled! ! ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.