Arc 5

Stars That Engrave History (歴史を刻む星々, Reikishi wo kizamu hoshi) is the fifth arc of the Re:Zero kara Hajimeru Isekai Seikatsu series, preceded by The Everlasting Contract Arc and followed by The Corridor of Memories Arc. Arc 5 currently consists of five light novel volumes and is ongoing.

Overview
Anastasia invites the Emilia, Crusch, Priscilla, and Felt Camps to attend a party in Priestella. Soon after they arrive at the Water Gate City, Sin Archbishops of the Witch Cult appear to take control over the city, forcing Subaru to unite all the camps in order to defeat them and protect the city.

Protagonists

 * Subaru Natsuki
 * Emilia

Antagonists

 * Ley Batenkaitos
 * Roy Alphard (debut)
 * Louis Arneb (debut)
 * Regulus Corneas
 * Sirius (debut)
 * Capella Emerada Lugnica (debut)
 * Theresia van Astrea
 * Kurgan (debut)

Re:Zero Light Novel Volume 16

 * Chapter 1
 * Chapter 2
 * Chapter 3
 * In the Light Novel, the sparring battle between Reinhard van Astrea and Garfiel Tinsel doesn't happen, however Garfiel recognizes Reinhard's immerse strength from his aura feels a instinctual fear.
 * Chapter 4
 * Chapter 5

Re:Zero Light Novel Volume 17

 * Chapter 1
 * Subaru's whip is made of the Demon Beast, The Guiltylaw
 * Chapter 2
 * Chapter 3
 * Ricardo's appearance and dialog is replaced with Al from the scene where Subaru wakes up.
 * Capella's request for Priestella became the remains of the Witch of Pride
 * Anastasia had investigated the Watergate city before, and she knows that the city was used as a trapping mechanism to capture a Witch, but she doesn't know what witch.
 * Aldebaran knows about the Witch Cult and the Witches of Sin. Specifically, he knows that the request pertained to the remains of Typhon.
 * Chapter 4
 * Chapter 5
 * Roy's main weapon is changed to claws instead of twin short swords in the web novel.
 * Capella transforms into Emilia as Subaru is facing her.

Re:Zero Light Novel Volume 18

 * Prologue
 * The prologue is new.
 * During the fight against Kurgan, Garfiel nearly dies, but Ricardo saves him.
 * The Witch Cult opened the water-gate in the first street for a brief amount of time, resulting in the city being partly flooded.
 * A Black Dragon, likely the transformed Garek, tries to save Crusch and Subaru by carrying them in its talons outside the City Hall. But a Giant Serpent, part of Capella's transformation attacks him, causing him to drop Subaru into the flooding Priestella.
 * Chapter 1
 * Subaru nearly drowns, when he comes to he finds himself with Priscilla and Lilliana. Presumably rescued by Priscilla.
 * A new kind of creatures called Demi-Beasts are present around the city. They are described to be a cross between steel and flesh, having weapons like axes, spears, and such protruding from their body. They are blind and some lack certain body parts. Subaru comments that they are likely not Demon Beasts.
 * On the way to the Muse Company, Subaru is cornered by three Demi-beasts and he is in a bad spot, but Julius helps him dispatch of them.
 * Chapter 2
 * The Witch Cult attack the Priestellan Council of Ten, slaughtering everyone but Kiritaka
 * Artificial Spirit Echidna is not introduced.
 * There is a completely new scene written in which Sirius attacked the Muse Company where Anastasia, Kiritaka, and some of the non-combatants and the injured were. This occurred roughly when Subaru and the others were trying to recapture the City Hall. The injured and non-combatants manage to escape thanks to Tivey and Hetaro helping to fend off Sirius, before Kiritaka and his White Dragon Scales took over.
 * Chapter 3
 * There is a new scene in which Emilia sneaks out of her room, to spy on Regulus who is talking using a Conversing Mirror to Capella. When Regulus leaves, Emilia approaches the desk with the Mirror is and it shines. She picks it up and Al is on the other side. Emilia asks him to convey a message to Subaru about where Regulus and Capella are.
 * Al is against Subaru making his speech in the Light Novel.
 * Chapter 4
 * Wilhelm talks about the civil war and Sphinx, but the Roswaal of two generations ago is not mentioned.
 * Instead of asking Al to go with Priscilla and Lilliana to fight against Sirius, Subaru asks him to stay back and defend the City Hall. In the Web Novel it was Priscilla who told him although this happened off-screen.
 * Chapter 5
 * Otto's scene just before he encounters Ley is modified so it includes references to the Demi-Beasts.

Re:Zero Light Novel Volume 19

 * Prologue
 * Julius is far more uneasy about the prospect of fighting Roy, and wonders if someone had been eaten from their faction. Ricardo tries to assuage his worries by asking how that could be so, because he knew that Mimi and the others, Anastasia, and of course Julius himself were all present.
 * Instead of Otto, Felt, Dynas and the others stalling Ley so that Liliana could escape, Dynas claimed that Liliana had been taken by the enemy. Kiritaka is not present in this scene.
 * Wilhelm and Garfiel approaching the control tower was not told in flashback form, but instead illustrates the scene of events that occurred for them to get there.
 * When they enter the area, instead of finding the writing in blood on the wall, Wilhelm and Garfiel encounter the reanimated Theresia van Astrea and Kurgan. Behind them, is an eerie looking giant blood clot. After Theresia's hood slips from her, the blood clot attacks and engulfs both Kurgan and Garfiel.