Noa Ikurumi

An 18yearold amnesiac who is one of the 1 million KIDz that lost their memories simultaneously. He is a genius whose intelligence surpasses that of his quotAdultquot nonamnesiac teachers. He lives with two younger quotsiblingsquot whom he watches over. According to a strange girl who claims to be an old friend of his from before 1/11 when the mass memory loss occurred Noa was the one who created the bomb that destroyed his own memory along with the other 1 million affected.