|Seidou High School - No. 5|
|Bats: Right||Throws: Right|
|Age||17 (debut) |
|Date of birth||14 October|
|Place of birth||Tokyo|
|Height||182 cm (5' 11.5")|
|Weight||82 kg (180 lbs)|
|Education||3rd Year High School (debut)|
Seidou Alumnus 
|Skills||super heavyweight power hitter|
|Manga||Act I - Chapter 4|
|Anime||S1 - Episode 3|
|Voice Actor||Wataru Hatano|
Did you get fatter?
Masuko Tooru was the vice-captain and third baseman of the Seidou High School, also the former roommate of Sawamura Eijun and Kuramochi Youichi. After his retirement, he was the roommate of Takigawa Chris Yuu and Makihara.
Masuko does not talk much. But when he is talking, he says the most important in the shortest way. He is kind by nature, so he is bulled by his kouhais sometimes.
He is very strict with himself. He bans himself from speaking after making an error in a match - as seen at Masuko and Sawamura's first meeting, when he only communicated by writing notes. Kuramochi told Sawamura later, that Masuko had made a mistake the other day and now does not let himself talk.
Because of his purposefulness, which shows itself in his avid training, he seems solid as a rock. Thanks to this purposefulness he gets permission from coach Kataoka to return to the starting lineup. He is very good at hitting fastballs but bad with breaking balls. Despite his large physique he moves fast. He was the team's fifth batter (also called five-hole).
This data is based on the official guidebook, it will only be changed if there is an official update!
You are free to write about the characters improvements in the Skills section above!
- At the start of his 3rd Year, he lost his position on the starting lineup because he made an error during a match. 
- His hobby is pudding tasting. 
- His family's liquor shop will be turned into a convenience store in the near future.
- When he came to watch Seidou vs. Sousei game in Act II, he has slimmed down 20% from what he were back in the Fall season of previous year according to himself. 
- Rankings from the guidebook:
- Physical Ability: He ranks second in Back strength, behind Nagata Shouhei from Seiko.
- Batting: He ranks fifth in having the best batting power.
- He was in the same class (3B) as Isashiki Jun and Kominato Ryosuke.
- Favorite Food: Rice and Pudding
- Favorite Subject: World History
- Person he respects: Coach Kataoka
- His family's convenience store is called Fairy Man.
- He attended Ouura Junior High in Saitama.
- He shares a birthday with Toujou Hideaki.
- “If the ball had been off by a little bit, the one who would have lost was me. It was a good ball, full of spirit, Sawamura-chan.” - about Sawamura
|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|