All Races Cultivate Fire, but I Refine Cold and Become an Immortal

After waking up from time travel, Lin Lan found that she was being chained and being escorted in the snow as a "consumable" When the escort team was attacked and killed, a piece of black ice shard pierced the palm. Everyone thought he was dead. Only Lin Lan himself noticed that the cold poison that frightened the monks was... Being slowly digested in his body. "Ice Spirit Root!" Everyone exclaimed, but there was only greed in their eyes. In this world, only the fire spirit root is a treasure. And he is one of the best ice spirit roots, a top-notch consumable. Later, when the Immortal Sect was fighting for a top-grade fire spirit stone, Lin Lan sat deep in the cold mine, holding the ice marrow and lost in thought: There is something very wrong with this cultivating immortality. And his ice spirit root seems to be... The most wrong thing.