Signing in the Cold Palace for 80 Years, I Am Invincible in the World

The prince who traveled through the Yuhua Dynasty was deposed as the prince because he let the saint of the enemy country go. He was thrown into the cold palace and was not allowed to go out. Jiang Fan didn't feel too sad. He had a sign-in system when he traveled back in time. As long as he signed in at different places, he would get rewards. Signed in at the entrance of Leng Palace and obtained the Heaven-Slaying Sword Technique In the royal meeting hall, he obtained the Heaven-Mending Technique In the Queen Mother's Palace, he obtained the Illustrated Book of the God of War … Jiang Fan originally thought that by silently signing in like this, he would become invincible in the world, but who would have thought that the Concubine Tian who he let go privately would rebel and seize power after returning to the country. After seizing power, the first thing he did was to attack the Yuhua Dynasty and rescue Jiang Fan. After hearing the news, Jiang Fan was confused: "Do I still need your help?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.