It explores how "normal" people can be coerced into doing terrible things through peer pressure and fear.
Technically, there is a legal way to read the raw. If you purchase a digital copy of Monthly Shonen Sunday from Amazon Japan or Bookwalker Japan using a VPN, you are reading the official raw. However, you will pay ¥600 (~$4 USD) per issue for just one chapter of Guilty Circle , plus the rest of the magazine you might not want. guilty circle manga raw
Check for official digital volumes if you prefer reading the translated version and want to support the mangaka directly. A Word of Caution It explores how "normal" people can be coerced