Full raws link:
https://spoilerplus.net/kingdom/9706/
Summary thanks to Saemon and TKC:
As Shibashou’s main army moves to attack Ousen, Kan Saro’s cavalry hits Sou’Ou’s army from the side with another 10k infantry following up. Ji Aga also resumes his attack and they pincer Sou’Ou. Denrimi is heavily injured and says they need to get to Ousen immediately or the Qin army will be trapped. Sou’Ou agrees by noting that they sealed off his and Akou’s army so Shibashou could advance unharmed. Denrimi gets mad and yells that the Hi Shin Unit on the right has also been sealed off because Shin split his unit to chase after Riboku while the Gyoku Hou are also down 10k soldiers because Ou Hon moved to reinforce the right wing. Denrimi explains that their formation allowed for the right wing to work together with the center, but Riboku’s appearance disrupted that formation and they’ve lost that advantage. Everything was set up so Shibashou could directly clash with Ousen.
Ousen’s archers start firing but Shibashou seems unphased. Kanjou shows up with the remaining 20k Gyoku Hou after understanding the situation and realizing this is already the climax. Before the Gyoku Hou make contact, Shibashou calls out to one of his officers. The Gyoku Hou hit Shibashou’s army hard and the Qin soldiers start celebrating at the damage they’ve taken. However, they suddenly realize that Shibashou’s army withstood the charge and barely took any damage. Shibashou’s army finally makes contact with Ousen’s army. Ousen’s soldiers call out to hold firm as Shibashou swings his glaive.
Shin’s group finally takes the fortress and storm in. Ten says Riboku may be hidden among the rank and file soldiers, so she orders the HSU outside the fortress to not let a single person escape. Sosui takes the gates and Garo comments that this small fortress backfired on Riboku. Kanto interrogates a Zhao soldier about Riboku, but he says he doesn’t know and surrenders. Shin assumes Futei is hanging around somewhere as a last line of defense and tells his troops to split up and search the fortress. The soldiers outside the fortress start getting excited about their looming victory, but Ten realizes something and falls off her horse in shock. She starts calling herself an idiot and can’t believe she feel for such an infantile ploy. Shin’s men call for him to come look at something. He assumes it’s Riboku but instead sees an entrance to an underground tunnel.