(2) Ten-year contribution refers to the contribution made by Yue Fei in leading Yue Jiajun to resist gold for ten years.
(3) After Yue Fei returned to the DPRK, Qin Gui poisoned Yue Fei in Dali Temple Prison in Lin 'an on charges of "unwarranted".
(4) If I were Yue Fei and knew there were evil tigers in North Korea, I would still go back to North Korea. Because people live in history. Neo-Confucianism flourished in the Southern Song Dynasty, and people paid attention to the concept of monarch and minister. Qin Gui is in charge of state affairs, and his words are immortal. If Yue Fei doesn't reply, he will disobey the imperial edict, and his ten years' hard work may be erased by a disobedience. Besides, Yue Fei's heart is tied to the world, and he knows in his heart that if he comes back, he will die. If you don't come back, let the traitor handle it. Without the support of the imperial court, the war against gold would not last. If you don't come back, you will prove Qin Gui's ambition with your own blood.