|Seidou High School|
|Bats: Left||Throws: Right|
|Nickname||Taku (by Okumura Koushuu)|
|Date of birth||17 March|
|Education||3rd Year Junior High (debut)
1st Year High School
|Skills||High baseball IQ
|Manga||Act I - Chapter 244|
|Anime||S2 - Episode 05|
|Voice Actor||Daiki Yamashita|
|“||I have some quick legs||”|
— Seto Takuma
Seto has medium length brown hair with red highlights that reaches down to his chin. He is first seen wearing red glasses, a yellow button-up shirt, a white long-sleeved undershirt, blue cargo pants and a white hat.
An optimist with an ever-present smile, Seto is confident about his speed. He cares for his childhood friend, Okumura Koushuu and always cheers for him. When Okumura decided to enroll in Seidou, he decided to follow him there.
HistoryEditHe was a third-year junior high student from Daikyou Senior in Kanagawa. Seto and Okumura's coach treated them nicely in the beginning, but the coach actually believed the team had no potential and suddenly left them to coach a long time rival of their school instead. Feeling betrayed, Okumura rallied Seto and their teammates to defeat their former coach in a game to return him the favour.
Seto watches Seidou's first-round match against Teito High together with his close peer Okumura Koushuu.
Seto and Okumura come to watch Seidou's finals match against Yakushi High. They are shown in the bathroom with Seto talking about Raichi and his skills as both a batter and a pitcher. They later run into fellow middle school students Yuuki Masashi and Akamatsu Shinji and they have a brief conversation about what high school they'll be enrolling in. While Seto doesn't recognize Akamatsu, Okumura does recognize the pitcher.
After the match, he is seen talking to Okumura and Akamatsu.
Seto and Okumura both attended Daikyou Senior and came to watch Seidou take on Teito in the Fall Tournament when deciding which high school to enroll to. After enrolling at Seidou it's obvious that he sincerely cares about Okumura and often looks out for him, telling him that he doesn't have to push himself so hard.
Seto is a player with good legs and is adept at stealing and putting pressure while on bases. His records and effectiveness are not yet available but Kuramochi once noted that Seto's base-stealing techniques demonstrated he must have had an extensive amount of training to be able to employ.
Ochiai also noted that his speed ranks A+.
Player Statistics: Second Baseman
- Until the start of Act II, he was always seen wearing a beanie.
- During the introduction of the first years, he is seen without his beanie for the first time.
- He is very confident in his legs.
- He calls Yuuki Masashi and Yui Kaoru "iron stomach monsters".
- Okumura states he's a genius gamer.
- Seto's hitting march is Rocky Theme by Bill Conti.
- Seto (瀬戸) - Port to the Rapids
- Takuma (拓馬) - Supporting Horse
- "Koushuu, whose pitch do you want to catch?" - to Okumura
- "Everyone here is such a sore loser."
- "He can change the mood of the whole stadium, in a different way than Furuya-san." - about Sawamura
- "You see, the thing about Koushuu is that he's always dead serious, no matter who he's up against. That's the reason why I just can't leave him and his dangerous tendencies alone" - about Okumura
- "Nothing! I was just telling him [Asada] how it's never boring with you around!" - to Okumura
- "If you need a shoulder to cry on, just come to me." - to Okumura
|Seidou High School|
|Miyuki Kazuya • Maezono Kenta • Kuramochi Yōichi • Kawakami Norifumi • Asou Takeru • Nakata Ataru • Ono Hiroshi • Higasa Shōji • Seki Naomichi • Yamaguchi Ken • Kijima Rei • Kawashima Kengo|
|Sawamura Eijun• Furuya Satoru • Kominato Haruichi • Kanemaru Shinji • Tōjō Hideaki • Kaneda Tadahiro|
|Yui Kaoru • Yūki Masashi • Okumura Kōshū • Mogami Takeshi • Asada Hirofumi • Seto Takuma • Kuki Yōhei
|Former players||Yūki Tetsuya • Tanba Kōichirō • Kominato Ryōsuke • Masuko Tōru • Isashiki Jun • Miyauchi Keisuke • Sakai Ichirō • Kadota Masaaki • Kusunoki Fumiya • Takigawa Chris Yū • Azuma Kiyokuni
|Managers||Fujiwara Takako • Umemoto Sachiko • Natsukawa Yui • Yoshikawa Haruno
|Staff||Kataoka Tesshin • Ochiai Hiromitsu • Takashima Rei • Kazuyoshi Oota|