I Came to the Immortal Realm, So Why Am I Still a Wage Slave?

The heroine was originally a modern-day office drone. By a twist of fate, she transmigrates to a cultivation world and becomes a young immortal with an ordinary earth spirit root, though it is actually a Chaos spirit root. She knows nothing about crops or livestock, but to cultivate properly, she studies hard and gradually raises her cultivation level. In the end, she saves the world and becomes an Immortal Lord revered by all.