When People Are Exterminated, Master the Ripple Breathing Method at the Beginning!

Yang Chen, the author of Tomato, accidentally traveled to the world of Demon Slayer: Kimetsu no Yaiba, and even encountered an evil ghost. I thought my life would end here, but in the end, I was directly blessed with a dual system. Not only did you get the ripple breathing method in the JOJO world when you signed in for the first time, it was comparable to the breathing of the sun reappearing in the world! After the number of ghosts killed reached a certain level, a group of people that Yang Chen never expected were summoned. "People are most afraid of three long and two short, and the most afraid of incense is two short and one long. If you have this incense in your home, someone will be mourned!" "Second Battalion Commander, where are your Italian guns?" "Be a ghost and I'll let you fly. Don't you dare to gesticulate with me! You really don't know what black is..." "How do people like you change? I bet an ocean that there are no bullets in your gun!"