Hikaru Shindo (進藤 ヒカル Shindō Hikaru) - The protagonist. At the beginning of the series, Hikaru is a sixth grader in elementary school. An important factor in the development of Hikaru's passion for Go is an encounter early on in which Hikaru becomes the rival of Go prodigy Akira Toya. At first, he thinks that Go is just for old folks and he is annoyed at Sai's demand to play, but little by little his passion for Go increases as he plays more and more. From being a member of a school Go club to becoming an insei and finally a professional Go player (at 14 years old) a year after Akira, Hikaru matures throughout the course of the series. Throughout the series, Hikaru gets older in age as both the manga volumes and animated series follow him from 6th grade to high school. Hikaru is often portrayed wearing clothing having the numeral "5". This is a pun on the Japanese word for five: 五, which is pronounced go. Part of his strength is his ability to read far into the game very fast, and to make seemingly stupid moves, which, in fact, lure the opponent to playing what looks like the obviously correct move, which Hikaru then uses against them. He is voiced by Tomoko Kawakami.