Hour of Reckoning is the 685th chapter of the Kingdom manga.
Summary[]
Gaku Haku Kou, a general of Zhao, swings his massive war mace, sending several Hi Shin cavalry flying. In the chaos, Kyou Rei falls off a cliff as she warns Den Ei and the others about Gaku Haku’s unusual martial arts. Gaku Haku disappears, only to reappear near Shin’s left side. As he swings his mace again, he kills more soldiers and forces Shin to the ground. He introduces himself, expressing his intent to kill Shin and any invaders foolish enough to challenge him.
At that moment, his elite cavalry, the Senkyou Unit, emerges behind him. Gaku Haku Kou speaks of how his lord, Ko Chou, became the "Guardian Deity" of Kantan, and how his vassals have devoted themselves to studying tactics and training. He discusses how violence only breeds more violence, setting the stage for the imminent clash between him and the Hi Shin Unit. Meanwhile, at Zhao’s headquarters, Rai Do and his men are held captive as Zhao’s Great General, Ko Chou, enters the tent with a group of torturers.