Eijun Sawamura comes from Nagano Prefecture, where he played baseball in Akagi Junior High. He is a left-handed pitcher who was promoted from the Second-String to the First-String as No. 20 and later on No. 18 by the start of the Fall Tournament. He becomes Seidou's Ace in his second year by the start of the Summer Regional Tournament. Eijun is a lean-built teenager of average height. He has dark brown hair with brown eyes. He is often seen with a smile. He prefers to wear his hat frontwards. Eijun is a hotheaded and loudmouthed youth, usually coming off as obnoxious. After he arrives at Seidou, he quickly makes himself known for his stupidity, especially because of his strange antics and his mediocre knowledge about baseball. But Eijun is eager to learn new things despite often making mistakes, which he tries to realize and prevent in the future. He is a pitcher who throws with his feelings and is never ashamed to show everyone what's on his mind. His teammates often get inspired by his strong will and unwavering spirit and try to give it their all. He is also surprisingly level-headed in critical situations, but can also be swayed causing his performance to drop. As he gains experience over time, and due to the fact that he has been subbed into many difficult situations as a relief pitcher, Eijun has learned how to maintain consistent focus and has become very capable of handling crisis situations.