Chapter 1.21 (Old Version)

Chapter 1.21 is the twenty-first chapter of Volume 1 and the twenty-first chapter of the series.

Main Site
https://kyologist.com/2019/03/11/chapter-1-21-xyz-2/

Royal Road
https://www.royalroad.com/fiction/24688/phantonics/chapter/365203/chapter-121

Trivia

 * Chapter 1.21, when there were titles for chapters, was called "XYZ!"