とある科学の超電磁砲 [Toaru Kagaku no Railgun] [A Certain Scientific Railgun] #4

This fourth volume of the A Certain Scientific Railgun side story manga continues the adventures of Misaka Mikoto and her friends in Academy City, focusing on the events surrounding the Daihasei Festival arc. The volume collects chapters that deepen the conflict between the Judgement and Skill-Out factions while exploring the origins of the Level Upper incident. As a spin-off of the A Certain Magical Index series, this volume maintains the blend of supernatural action and character-driven storytelling that defines the franchise.