Bai Yifan has an antique ring that allows him to travel freely between the Earth and the fantasy world, and he has discovered that ordinary "plants and animals" on Earth will evolve into treasures when they are taken to the fantasy world. An apple evolves into a fruit of immortality, an egg will hatch into a phoenix, and a stray dog will become the descendant of dragons. He could even use tobacco to mind-control the enemy to his advantage!