Yun Che, an immortal cultivator who was expelled from the immortal world, accidentally fell into a modern city. His spiritual root was broken into five petals and mushrooms were grown in the subway; his Nascent Soul lived in the body of a stray cat on the roadside, sleepwalking through the city every night, swallowing the smell of neon. He made a living by refining alchemy, but he could only produce sleeping capsules and anti-hair loss elixir, becoming the underground king of the health care circle. But strange things happen one after another - the shadows in the city can talk, there are cockroaches that can cultivate immortality hidden in the trash can, and even the security guard in the next building calls himself the ancestor of the Jindan period. Yun Che only wanted to return to the fairy world, but he found that the city was even more absurd than the fairy world: the law here was "996", the catastrophe here was "performance appraisal", and even Heaven liked to give out red envelopes. The mismatch between cultivating immortals and modernity made Yun Che fall into endless self-questioning - in an alienated city, should he cultivate immortality or learn to be a human being? This book uses absurd and strange writing to tear apart the conventional worldview of immortality, interweaving aura and desire, magic and anxiety, supernatural powers and fragmented life into an inescapable urban spiritual practice.