Kimihiro Tsutsui (筒井 公宏 Tsutsui Kimihiro) - Captain and founder of the Haze Middle School Go Club. Initially he relies on a strategy book, though he has excellent Yose (end game) skills. Kaga persuades him to abandon the book in favor of trusting his strength. When he founded the Haze Middle School Go club he is the only member, but through the efforts of Hikaru and Akari the club grows. Kimihiro graduates from Haze Middle School before his dream of defeating the Kaio Middle School Go club can be realized.