Exchange of All Heavens and Worlds

Demon Slayer: Kimetsu no Yaiba world Tanjiro "Sir, I need a Nichirin sword" Li Yang: "I have a sword that can kill demons. It is more powerful than your Nichirin sword, but it requires your soul and kindness. Are you willing?" Marvel world Tony Stark "Sir, I would like greater wisdom, do you have it?" Li Yang: "Of course, I need you to provide me with steel armor for free. Are you willing?" Anti-Japanese War Period Li Yunlong: "Boy, do you have any aircraft or cannons?" Li Yang: "It's easy to say. I need you to buy it with gold. Are you willing?" Prehistoric world Li Yang: "Sun Wukong, your Ruyi Jinghu cudgel has exceeded its useful life. Now I not only want to take it back, but I also need you to pay interest." Sun Wukong: "Shangxian, the interest has been prepared for a long time, but in Lingshan, can you go and get it yourself?" ···· In order to develop the Exchange of All Worlds and strengthen himself, Li Yang traveled across the worlds to do business and collect interest. Not paying it back? Then kill them all. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.