Re:Zero Light Novel Volume 21

The twenty-first volume of the Re:Zero kara Hajimeru Isekai Seikatsu series. It is the 1st volume of Arc 6, The Corridor of Memories.

Summary
The fight with the Witch Cult is over, but deep scars were left from the events in the Watergate City.

To save the people who had their name taken, Subaru's group is aiming for the Tower of the Sage, heading to the furthest edge of the world. A den of Demon Beasts and miasma filling the atmosphere that is the Augria Sand Dunes. And the key to cross that never explored Sea of Sand is the captive "Demon Beast User". With the Oni Sisters (Rem & Ram) who'd lost their memories, an Artificial Spirit that named herself after a "Witch", and the "Finest of Knights" who'd had his name taken, the group challenges the Pleiades Watchtower.

"When you wake up, the first face I want you to see is mine. That's probably just my ego talking though."

From the popular web novel, the twenty-first volume of hardship and defiance. Unto the foolish challengers, receive the initiation of the barren sand.

Chapters

 * Prologue: Along their Journey
 * Chapter 1: The Reason to Bring You Out
 * Chapter 2: Break Through the Sand Time!
 * Chapter 3: The Initiation of the Watchtower
 * Chapter 4: Faith Built Upon the Sand
 * Chapter 5: The Keeper of the Watchtower
 * Interlude: Gorgeous Tiger Reloaded

Short Stories

 * Beatrice's Everyone is Troublesome, I Suppose
 * Julius Juukulius's Promise Keeping Notebook
 * Those Remaining in the Watergate City, Priestella Reconstruction Journal

Characters

 * Julius Juukulius
 * Natsuki Subaru
 * Beatrice
 * Klein Juukulius (mentioned)
 * Alviero Juukulius (mentioned)
 * Emilia
 * Reinhard van Astrea (mentioned)
 * Crusch Karsten (mentioned)
 * Anastasia Hoshin (mentioned)
 * Ferris (mentioned)
 * Eridna
 * Echidna (mentioned)
 * Petra Leyte
 * Ram
 * Roswaal L Mathers
 * Otto Suwen
 * Garfiel Tinsel
 * Frederica Baumann
 * Meili Portroute
 * Mother (mentioned)
 * Rem
 * Patrasche
 * Reid Astrea (mentioned)
 * Shaknar (mentioned)
 * Joseph
 * Shaula (debut)
 * Petelgeuse Romanée-Conti (illusion)
 * Regulus Corneas (illusion)
 * Satella (illusion)
 * Mimi Pearlbaton
 * Hetaro Pearlbaton (mentioned)
 * Tivey Pearlbaton (mentioned)
 * Ricardo Welkin (mentioned)
 * Roshi (mentioned)
 * Wilhelm van Astrea
 * Kiritaka Muse (mentioned)
 * Kurgan (mentioned)
 * Theresia van Astrea (mentioned)
 * Rafiel Thompson
 * Fred Thompson
 * Reala Thompson
 * Garek Thompson (mentioned)