How to learn Xuan Jing from Jin Yong's heroic biography?

Biography of Jinyong Heroes 2, 1 Method: The reputation is up to standard, and the understanding is below 50. As the port fat man enters the Chivalrous Island, he directly chooses to study.

Methods 2 and 2 of Jin Yong's heroic biography: As mentioned above, the understanding is greater than 50. As the fat man in the port enters Chivalrous Island, you can prepare five study points first, or beat the old man desperately (I learn to brush to level 50 like ice), and then choose to study.

Biography of Jinyong Heroes 3, 1 Method: savvy below 50, chivalrous value positive, reputation above 1000. Enter the Laba porridge task and get it directly.

Methods 3 and 2 of Jin Yong's heroic biography: The conditions are as above, but the chivalrous value is negative. It is an evil acquisition to enter the Laba porridge task and defeat several people. ....

Please choose me as the best answer, I want to do this task. I am only a few steps away from adopting the answer, and I can still get the test knife.