This can be, open the box can get experience, but how much depends on your luck. Because in the process of opening the box, there will be those red experience dan, there is a difference between high and low quality, high quality can add dozens of W experience, the lowest is 5W. The lowest is 5W. If you are lucky, you can get millions of experience in a day. I was once bored to go to open, which also need to luck component. So the owner said 5 days time to 99 which is completely possible.