Introduction to the practice of "Swearing" to achieve the ultimate achievement

There are many special achievements in "Oath" and the peak achievement is one of them. However, many players do not know how to achieve peak achievement. First, you can unlock the achievements by upgrading to the highest level. If you basically have the whole picture and clear monsters, you can reach the highest level by hitting the last picture garden. How to achieve the ultimate achievement of swearing to the top? Upgrade to the highest level. If you basically have the entire picture and clear monsters, you can reach the highest level by hitting the last picture garden, and the highest level is 30