Diamond no Ace Wiki
Watanabe Hisashi
Seidou High School
Left fielder
Bats: left Throws: left
Kanji 渡辺 久志
Nickname Nabe
Gender Male
Age 17 (debut)

18 [1]

Date of birth 18 April
Bloodtype O
Height 172cm (5' 7.5")
Weight 58kg (127 lbs)
Education 2nd Year High School (debut)

3rd Year High School (current)

First Appearance
Manga Act I - Chapter 258
Anime S2 - Episode 9
Voice Actor Akira Ishida

Watanabe Hisashi is a third year student of Seidou High School and one of the 2nd string left fielders of the baseball team. He was formerly roommates with Endou Naoki.


Nabe is a lean-built teenager of average height. He has brown hair and brown eyes.


Nabe and his friends were troubled that they may not be zealous enough compared to those around and are wondering if it's okay for them to be on the team like this.[2]

Nabe is entrusted with observing the matches of their upcoming opponents because he is good at making notes - his notes are even on par with Chris' notes. Nabe is really grateful for that he can do something (collecting data) for the team, and he was really happy when Miyuki mouthed an apology to him during the match against Ugumori because it made him feel he was a member of the team, too. But at that same time, he realized that the field, although it looks so close, feels infinitely far, and covering that long distance is beyond his abilities.

Act I[]

Act II[]


Miyuki Kazuya[]

Coming soon


Name Etymology[]

  • Watanabe (渡辺) - Transient Edges
  • Hisashi (久志) - Long-lived


  • "They're like from a different race, after all... In comparison, we're like... just ordinary club members, I guess? At this stage, it's like you can feel the... how should I put it... the difference in the frame of mind, perhaps... Ah, it's not like we're here just to admire from afar, of course. We were prepared to these three years here being difficult..." - to Miyuki[3]
  • "Then, you've been swinging the bat for yourselves, haven't you. If there's still a flame burning here [he touches the spot where Nabe's heart is], no matter how small, don't give up. Keep practicing your swing! Do even one extra swing. Recklessly. Not just for the team but for your own sake." - Kataoka [4]
  • "What he noticed was a very small detail, but for the team, it was a major advantage." - Kataoka[5]



  1. Act II - Chapter 27
  2. Act I - Chapter 258
  3. Act I - Chapter 260
  4. Act I - Chapter 296
  5. S2 - Episode 23