This pinpoints the introductory chapter ("1") and highlights the primary narrative device used to move the plot forward: Sennou Gas (洗脳ガス), or brainwashing gas .
You are looking for a doujinshi titled (The Classroom of Obedience), specifically Volume 1. The story focuses on brainwashing ( sennou ) , likely involving a gas mechanism ( gas ) , set in a school. Use the clean title provided above to find high-quality scans on doujinshi repositories. doujindesutvfukujuukyoushitsu1sennougas top
The "Sennou" tag indicates a focus on scenarios where characters are mentally influenced or manipulated, a common theme in speculative fiction [1]. This pinpoints the introductory chapter ("1") and highlights