Mortal: One Minute of Effort, a Hundredfold Gain

Lin Ye traveled to a world where mortals were cultivating immortals and became a low-level casual cultivator. Fortunately, he got a hundredfold return system. The first thing you do on the first day of every month will get a hundredfold return. One day of practice will return a hundred days of cultivation. After refining one furnace of elixirs, one hundred furnaces of elixirs will be returned. Harvest a century-old elixir and return a ten-thousand-year elixir. Buy one Tianleizi and get one hundred Tianleizi back. ... Several years later, Lin Ye said with emotion: "Cultivation as an immortal is just that simple."