Web Novel

Re:Zero kara Hajimeru Isekai Seikatsu was first ever written on Ncode Syosetu as a free, unlicensed Web Novel. The first ever chapter was released on the 20th of April 2012. Ever since, the author Tappei Nagatsuki used the Web Novel as a draft for the upcoming Light Novels and releases chapters occasionally whenever he has time to write further.

Arc 1: Chaotic First Day
Chaotic First Day (怒涛の一日目) is the first arc of the web novel. The first chapter was released on April 20, 2012, and finished on the May 8, 2012.

The first arc is about Natsuki Subaru's arrival in the new, mysterious world he has been summoned to. There, in the Kingdom of Lugnica, he decided to help a silver-haired, amethyst-eyes girl with recovering her stolen insignia. However, he ends up being murdered by someone, but Returns from his death, and decided to use this ability to save that girl from her predestined death.

Arc 2: The Tumultuous Week
The Tumultuous Week (激動の一週間) is the second arc of the web novel.

This second arc is about Subaru accommodation in the Roswaal's Mansion, where he started working as a butler with Ram and Rem, but nevertheless, in his first days of working, he was murdered mysteriously. Willing to discover the killer, Subaru will do everything possible to gain the trust of everyone at the mansion.

Arc 3: Return of the Capital
Return of the Capital (再来の王都) is the third arc of the web novel.

The third arc is about Subaru, who after embarrassing Emilia in the Royal Capital. is left to be treated by Crusch Karsten. Soon after, Subaru and Rem return to the mansion, only to discover that everyone of the Emilia Camp was dead. While striving forward, Subaru finds clues, and is convinced that he cannot fight his enemies alone, thus seeks as much help as possible.

Arc 4: The Eternal Contract
The Eternal Contract (永遠の契約) is the fourth arc of the web novel.

The fourth arc is about Subaru being broken by the loss of Rem. Later, he and Emilia at the arrive at the Sanctuary to bring back the villagers of the Irlam Village. However, a badly wounded Roswaal L Mathers instructs the two of them to carry out the Trials of the Sanctuary, with the examiner of the Trials being the Witch of Greed, to liberate the Demi-Humans from the barrier. However, the journey starts to get complicated.

Arc 5: The Stars That Engrave History
The Stars That Engrave History (歴史を刻む星々, Reikishi wo Kizamu Hoshiboshi) is the fifth arc of the web novel.

Arc 6:
The Corridor of Memories (記憶の回廊, Kioku no Kairou) is the sixth arc of the web novel.

The sixth arc is about Subaru who leads a team to the Pleiades Watchtower to gain knowledge regarding how to fix the problems caused during the duel in Priestella. Once they finally arrive after much trouble, Shaula tells them that to gain knowledge, is to complete the Trials corresponding to the floor. However, in the process of doing so, enemies reappear.

Re:Zero IF
Several non-canonical short stories written in the WN as scenarios where Subaru's choices caused the canon to deviate at crucial points in the narrative. Read More

Trivia

 * Currently, only one Web Novel chapter was removed from the Web Novel, with it being the Butterfly's Dream What IF Story.
 * According to the author, there will be eleven arcs.
 * The Web Novel does not feature any illustrations, except for the End of Sloth chapter, which is the only Web Novel chapter featuring some sort of art.