- Voice Actor (CV)
- Yuuma Uchida
- Gender
- Male
- Birthday
- February 20
- Role
- Supporting
- Identity
- First-year catcher for Seidou High School Baseball Club, formerly the starting catcher of Daikyou Little League
Personality
Cool and composed
Highly ambitious
Bluntly honest
Fiercely competitive
Koushuu Okumura made his debut near the end of Ace of Diamond Act II as a middle schooler before officially joining Seidou High School. Having been betrayed by his junior high coach through empty promises, he harbors a deep aversion to sweet talk and hollow words, earning him the nickname 'Little Wolf Cub' from Sawamura for his lone-wolf demeanor. Armed with exceptional baseball IQ and natural catching instincts, he sets his sights on surpassing senior catcher Kazuya Miyuki from the moment he enrolls, positioning himself as the driving force behind Seidou's next generation.