The Dark Stone (Accel World x Semi-OP OC) (Sacred Seven Elements)

Brain Burst. A game where people 'accelerate' their brainwaves, and a battlefield where people from all over are battling to reach Level 10! Follow along as a new young man is introduced to this game. Join as he makes a legend of himself in the history of Brain Burst as he aims to be the best! This is the rise of the Darkstone King!