Ace of Diamond Season 1 (2013)
ダイヤのAエース (Daiya no Ēsu)


The series follows one Eijun Sawamura, a baseball pitcher with a very unusual change of pitch that has occurred naturally. Sawamura plans to go with his friends to a local high school and play baseball to the best of their abilities. However, one scout from the prestigious Seidou High approaches him and offers him a scholarship and a chance to make it to the nationals. Sawamura decides to pay a visit to the school, and it changes his entire outlook on the future. The season follows Seidou and their main rivals as they attempt to help the upperclassmen make it to nationals during the summer tournament. Once the summer tournament ends, the upperclassmen will be forced to retire, but how far can Sawamura help them go when he currently doesn’t have any control?
Directed by
Written by
Screenplay by
Music by


  • The overall rating of the show.

Poor < Fair < Good < Great


  • Animation quality and consistency for that time. 

Poor < Fair < Good < Great


  • How well the story flows and keeps you engaged.

Poor < Fair < Good < Great


Character design
Character development


Some annoying character traits



Ace of Diamond has been serialized by Weekly Shōnen Magazine since 2006. In 2008, Ace of Diamond received the Shogakukan Manga Awards for the shōnen category. In 2010, it won the Kodansha Manga Award for best shōnen manga.

An anime adaptation was premiered from 6 October 2013 to 28 March 2016. Two original animation DVDs will be bundled with the fourth and fifth volumes of the Ace of Diamond Act II manga; the first was released 15 July 2016 and the second was released on 16 September 2016.

Alternative titles

– Dia no Ace
– Ace of the Diamond
– ダイヤのA[エース]
– Ace of Diamond
– Daiya no A
– Daiya no Ace
– Diamond no Ace
– Диамантеният ас

TL;DR Review

Ace of Diamond (Japanese: ダイヤのAエース Hepburn: Daiya no Ēsu, also known as Diamond’s Ace) is a shōnen baseball manga written and illustrated by Yuji Terajima and published by Kodansha.

The animation is very consistent and pretty good for a TV show. There isn’t a lot of flashy action scenes so I guess they could afford to keep the high quality throughout.

Our main character, Eijun, is your typical protagonist that’s loud but have the heart of gold trope. He seems obnoxious at first but he’ll be the first to jump to the defense of his friend, or someone being picked on. We’ve seen this archetype in many shows, like Naruto, Black Clover, City Hunter, Trigun, etc. As with the example previously listed, not all shows executed this type of character well. Ace of Diamond is one of the shows that do it “somewhat” well.

Eijun introduction episodes painted him in a good light. It shows he cares more about his friends and teammate than his pride for playing baseball. However, after he got to high school, he seems to do a 180-degree turn. He now feels self-important and entitled for no reason. He no longer seems to care much for anyone but himself, which make the early high school episodes hard to watch. Understandably, they need to add some negative traits for him to grow, but with the slow progression pace of the show, it is hard to be invested in his character at first.

He does slowly evolve and develop as a character over time. Stick with the show for a bit if you were struggling with the early episodes, like me. Despite Eijun as our main protagonist, the show covers most of the characters on the team. This may be why it feels the show is slow. It doesn’t help that the series does a lot of recap of something that just happened 2 minutes ago.

I recommend this to the fans of sports anime that don’t mind slow-burn series. Ace of Diamond is intended for everyone.

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Opening Theme

– “Go Exceed!!” by [email protected] (eps 1-25)
– “Perfect Hero” by [email protected] (eps 26-51)
– “Hashire! Mirai” by Glay (eps 52-75)

Closing Theme

– “Seek Diamonds” by Hikasa Youko (eps 1-13)
– “Glory!” by Mimori Suzuko (eps 14-25)
– “Mirai e Tsunage” by DOP (eps 26-37)
– “Cloud Nine” by Hanae Natsuki, Oosaka Ryouta, Seidou Koukou Yakyuubu, Shimazaki Nobunaga (eps 38-5)
– “Promised Field” by Hanae Natsuki, Oosaka Ryouta, Seidou Koukou Yakyuubu, Shimazaki Nobunaga (eps 52-63)
– “Final Victory” by Hanae Natsuki, Oosaka Ryouta, Seidou Koukou Yakyuubu, Shimazaki Nobunaga (eps 64-75)

Insert/Image Theme

– “Hashire! Mirai” by Glay (ep 75)
– “Eien no Rival” by Hanae Natsuki
– “Get to the Top” by Kaji Yuuki
– “Go My Way” by Asanuma Shintarou
– “Grow Stronger” by Oosaka Ryouta
– “Oikaze ni Tsugu” by Okamoto Nobuhiko
– “Violent Wind” by Shimazaki Nobunaga



All images are copyright to their respective owners.

Photo by Nicolas LB, Jon Flobrant, and Yvette de Wit on Unsplash.

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