The Most Difficult to Cultivate Immortality

As an extraordinary ordinary Bai Duyun, he accidentally obtained a system called Immortal Cultivation Assistant, which would cause huge waves in the world that has just evolved. Bai Duyun looked at the jade ring in his hand speechlessly. Why do I have to practice for a year to get a few cultivation points, and a hundred cultivation points can reach the first level? How long will I have to endure this?