I Was a Menial in the Herb Garden, Then Lived for Ten Thousand Years and Became a Great Emperor

Lu Chen transmigrates to the Tianmen Sect and becomes an herb-gathering servant. When he accidentally steps on a spiritual herb and crushes it, he is astonished to discover that he has gained a year of life. From then on, a path to immortality unfolds before Lu Chen. [You successfully killed one Cold Han Flower (mid-tier, first rank) and gained two years of life.] [You successfully killed ten Cold Han Flowers and gained twenty years of life...] [You spent one hundred thousand years of life to deduce a cultivation technique. Great Fire Palm evolved into Divine Ruin Flame Palm.] [You spent one hundred thousand years of life to deduce a spiritual root. An ordinary fire spiritual root evolved into a supreme Divine Flame spiritual root.] The stars shifted and eras changed as one Great Emperor after another emerged. But when the people of the age reached the end of the Emperor’s Path, they discovered that someone had long been standing there: an herb-gathering servant...