Re:Library and Ziru's Musings are the only two sites approved by the translator to distribute the translations of Demon Sword Maiden. If you are not reading from either of those sites, then you are reading from a content thief.
If you like the novel, please do visit Re:Library or Ziru's Musings to show the translator that you care.
Do take into consideration that the translators have a life too, when you pick up a new hobby, you have to give up on another.
The translators picked up translating and they have to sacrifice their time for their family and the time to indulge in their other hobbies such as gaming, and reading novels.
A free translation isn’t really “free”, think of the time, dedication, and sweat the translators pour into their work before you say or do anything potentially harmful. Most people take free translations for granted, but they never once considered the work put behind the translations.