Chen Fei, an extremely spiritual person with zero affinity, was expelled from the Immortal Cultivation Sect in public.
On his first day down the mountain, a diesel truck passed in front of him. Others covered their noses and ran away, but he found that the exhaust gas was getting into his meridians.
Others breathe oxygen, while he breathes exhaust fumes.
Others exhale spiritual energy, while he swallows waste energy.
From then on, the car repair shop was a paradise and the chemical plant was a blessed place. The thicker the exhaust gas, the more intense the cultivation level. The entire world of immortals is breathing oxygen, but he is the only one breathing CO₂.
Later, when the spiritual energy dried up and alien beasts invaded, the whole world knelt down and asked him: What exactly are you cultivating?
Chen Fei blew out a smoke ring: exhaust gas.