The manga series 'A Certain Scientific Accelerator' began its serialization, expanding the 'A Certain Magical Index' universe by focusing on the character Accelerator.
The anime adaptation of 'A Certain Scientific Accelerator' was released, bringing the manga series to the screen and gaining a broader audience.
Accelerator is born and grows up with a special vector control ability, eventually becoming the strongest Level 5 esper in Academy City.
Academy City starts conducting dark experiments involving espers and dark side projects, including events leading to the Dark Side of Academy City storyline.
Accelerator fights against the Sisters, clones of Misaka Mikoto, under orders from the dark side projects, leading to his transformation and subsequent change of heart.
Accelerator rescues Last Order, the final Misaka clone, becoming her protector and ally.
Accelerator faces off against various factions including dark side operatives attempting to eliminate Last Order, showcasing his powers and determination.
Accelerator meets Misaki Shokuhou, a Level 5 esper with powerful mental abilities, marking a significant interaction in his life.
Accelerator battles opponents trying to capture Last Order and explores the extent of his abilities within the Misaka Network system.
Accelerator confronts and defeats several dark side operatives to protect Last Order and maintain peace around Academy City.
Accelerator accepts his role as Last Order's protector and starts to redefine his place in Academy City's complex power struggles.
