So here's a rough summary. Bear in mind there might be inaccuracies.
The city sleeps and Rakshas is tailing Rickert from the rooftops. As he gets down and closes in for the kill, fireworks light up, surrounding and revealing he's fallen for a trap. Rickert opens fire with the repeating crossbow he'd been carrying in an inconspicuous box. Looking from a window overhead, Luca comments that it seems it has started. She warns Erika not to approach the scene until the battle is over, that it's not fit for women and children. She also warns her girls not to try to peep, because if they're caught by the Demon Soldiers, they'll be either killed on the spot or arrested for helping traitors.
Rickert sprays Rakshas with arrows and exclaims that he got him. But as Rakshas' body slumps down, another one rises up from below. He grabs his mask, on which an arrow is notched, and says: "I told you... my head isn't necessarily there." He then complains upon looking at the damage: "Awww, I wear a new mask and it's already damaged... Only bad things are happening to me today, *sob*". Rickert uses the opportunity to try and shoot him some more, but Rakshas flicks his hand and sends the arrow he just removed from the mask right in Rickert's shoulder. He tells him he's got amazing guts to be fighting against him instead of running away. Rickert replies that he was once tracked by his kind for dozens of miles (referring to the boar apostle), so he knows he can't easily run away from him. Rakshas replies: "Indeed... many apostles have a fixation... Especially because they're all attracted by the Falcon. Me too. However, I... want to kill the Falcon with my own hands."
Silat uses that opportunity to strike. Rakshas dodges the Urumi (he recognizes the weapon), but they cut into his cloak. Silat calls him "joyful murderer", and tells him he's really unqualified to be an assassin. An assassin shouldn't feel joy when they kill somebody, and that's a fatal flaw among the Bakiraka. An assassin should bring death, not taunt their target. He then tells him he'll slash him into rags. Rickert thinks to himself: "Great". Silat sees Rakshas' face move within the cloth. He tells Rakshas that "the same tactic won't work twice" and manages to slash his face with a blade held between his toes. Tells him "you're finished" as he's about to administer the death blow, but Rakshas calmly responds: "the blades can't cut me anymore". The fabric has ensnared them.
The apostle goes on the offensive and Silat defends with his Katars. Rakshas comments that Silat's skills really have improved. That he used to only be arrogant because he was the son of the chief. And that he (Rakshas) was careless just now. Silat replies that it's true, he used to be arrogant. But that, on a battlefield, he was put in his place by a man (using an idiom about his nose being disjointed). "After that, I practiced everyday to be good enough to manage in this harsh world." Rickert, who's been a witness to all of this, realizes that Silat is talking about Guts.
Rakshas tells him that the fireworks are going to go out soon. "I, Rakshas, will be shattered into the dark. When the flames are extinguished, so will be your life."
Silat says: "you're late". The Tapasa reply: "sorry for keeping you waiting, master. We're ready." They use the water spraying device as a flamethrower against Rakshas. Rickert exclaims: "We got him!" Silat comments that filling that device with oil to shoot fire from it was a great idea. Meanwhile, the girls are worried because of the fire. Erika suddenly gets going, despite Luka yelling at her to stop.
Rakshas is burning. He tells them: "don't look at me... don't look at me... don't shine a light on me" as he transforms into his apostle form. Rickert comments that he's a reborn demon (i.e. apostle); that it's the true form of Rakshas. Rakshas, now huge, grabs a horse through a roof and splits it open over himself. Rickert realizes that he was trying to put out the flames with the horse's blood. The Tapasa swear at him, and Rakshas throws half a horse at them, destroying the flamethrowing device. He comments on the fact he's still burning a bit. Erika arrives, worried about Rickert. Luka's running after her, but to no avail. Rakshas snaps her up in an instant, and holds her up high in the sky as Rickert screams her name.