Old Friends at the Border Are Far Away from Chang'an

After the Yan Kingdom experienced more than ten years of internal melee, the people were in dire straits. The newly ascended emperor of the Yan Kingdom, Yu Wenjie, wanted to let the war-torn land recuperate. But at the same time, the two countries Nanfeng and Beichen, which bordered the Yan Kingdom, wanted to take advantage of the decline in Yan Kingdom's national power to cause trouble. What kind of sparks will the general's son Luo Qingfeng and herbal tea Xishi Feng Xiyu create in this deal with the enemy in the context of great disparity in status?