The protagonist of Chaos Code. A hyperactive Otaku with a strong sense of justice. He makes it his business to buy the latest in limited edition figures and other Akihabara merchandise. He is also ranked Sub Lieutenant in the Earth Union military. Hikaru is given the mission to retrieve the Chaos Code, and prevent Kurenai's special agent Kagari from interfering with their agenda. His alternate version is known as "MG Hikaru", where he is powered up from waiting in line for a limited edition figure and finally getting it. MG Hikaru is "quietly insane".