Tetsuya Yuuki  

, 結城 哲也

The captain of Seidou is leading the team through their performance. Tetsuya played as a first baseman and was known for being quiet, rarely giving powerful comments to motivate his teammates. Despite this, he was highly respected by opposing teams due to his ability to hit most signature pitches of aces, effectively disrupting their strategies. One of his specialties is hitting curveballs that often scare fielders. In his free time, Tetsuya enjoys playing shogi with Miyuki, even though she has noted that he is not very skilled at it.