If this goes according to history, the unknown delegation arriving in Kanyou are from Qi and Zhao and a banquet is held for them.
Update: Summary courtesy of 爱红尘R from tieba
-There are discussions in the court that there may be another coalition war starting. SHK said that the previous coalition war was started by the 2 giants in the political arena, Riboku and SSK. Now that SSK is dead and Riboku has yet to regain his power in Zhao after the previous coalition war, nobody is able to start another coalition war. He also promises that he will not let a second coalition war happen.
-Sei asks which state should Qin attack and SHK replies that they should stick to the plan and continue their offense on Zhao, using Kokuyou hills as a springboard.
-Shin stayed in Kokuyou for 5 days, with 4 of those days doing nothing but drinking. He then received an order to stop any hostilities with as Saitaku, Riboku and the king of Qi has arrived in Kanyou, as was recorded in history.
-SHK asks Saitaku why did he bring the 2 of them to Kanyou. Saitaku replies that he brought Riboku only because he wants a safe passage through Zhao. His truly only wanted to bring the king of Qi to Qin.
-Saitaku then invites the ruler of the west, Qin’s king, and the ruler of the east, Qi’s king, to have a battle of words. In fact, the concept of Qin being the ruler of the west and Qi being ruler of the east has been there since the era of King Sho, Sei’s great grandfather.
Update 2: Korean full chapter out: http://tieba.baidu.com/p/4745376782