Forget Me Not Battery Review: The Baseball Manga That's Really About Memory

Quick Take

• A legendary pitcher loses all memory of his baseball past and starts over at a new school
• The amnesia premise is used seriously — not for comedy but to explore what made him great
• Weekly Shonen Jump quality production; the baseball is excellent, the character dynamics are better

Who Is This Manga For?

• Baseball manga fans who want something fresh in the genre
• Readers who enjoy character-driven sports drama over action-focused sports manga
• Those interested in how identity forms around skill and what happens when that skill is lost and re-found
• Fans of Weekly Shonen Jump sports titles

Content Warnings & Age Rating

Age Rating: T (Teen) Content Warnings: Amnesia themes, intense pressure around athletic performance

Appropriate for teen readers. Standard shonen content.

Yu's Rating

Category	Score
Story Depth	★★★★☆
Art Style	★★★★☆
Character Development	★★★★★
Accessibility for Non-Japanese Readers	★★★★☆
Reread Value	★★★★☆

Story Overview

Haruna Ryo was the most dominant pitcher in middle school baseball — a once-in-a-generation talent whose battery partnership with catcher Kido Tomura was considered the best at any level.

Then Haruna loses all memory of baseball. Not of his life, not of his relationships, but of everything related to baseball: the years of practice, the games, the victories, the techniques.

He transfers to Nishiura High School. His old catcher Kido, who watched Haruna's rise and knows exactly what was lost, transfers with him.

Now Haruna has to rebuild from zero — with the shadow of who he was hanging over the version of himself that does not remember.

Characters

Haruna Ryo is an unusual sports protagonist. Most baseball manga heroes work to become the best. Haruna was already the best and has to figure out who he is without that identity. His rediscovery of what he can do, without the weight of reputation attached, becomes the series' central question.

Kido Tomura is the character who carries the memory Haruna has lost. His presence creates a fascinating dynamic — he knew the version of Haruna that everyone else knew, but the Haruna he is playing with now is genuinely different. His choice to follow Haruna rather than give up on the partnership is the series' emotional foundation.

The supporting cast of Nishiura's baseball team is developed with care, each player having a specific reason they came to this school and a specific goal.

Art Style

Amagi's art is clean and kinetic. Baseball sequences are well-drawn with accurate mechanics — pitch types are distinguishable, fielding positions are correct. The character designs are strong and immediately distinctive.

The art handles emotional scenes effectively, which matters in a series where so much turns on what characters are thinking and feeling rather than what they are doing.

Cultural Context

Amnesia in manga has a long tradition as a device for exploring identity — who are you without your memories, and how much of personality is formed by experience versus some more essential self?

Forget Me Not Battery uses this specifically for athletic identity. In Japanese baseball culture, where players are often defined entirely by their career statistics and reputation from early age, the loss of that history is a particular kind of erasure.

The title refers to both the baseball battery (pitcher and catcher) and the flower — "forget-me-not" — implying memory, being remembered, being important enough to hold onto.

What I Love About It

The premise hooked me immediately, but what kept me was Kido.

Most sports manga are about the athlete. Forget Me Not Battery is as much about the person who supports the athlete — the catcher whose job is to understand the pitcher completely. Kido knew Haruna's full self, the one with all the memories, and now has to figure out what to do with someone who is genuinely different while being the same person.

That is an unusual question for a sports manga to ask. It is handled seriously.

What English-Speaking Fans Say

Western readers discovered this through the anime adaptation (which aired in 2024) and found the manga went deeper on the character work. The consensus is that it is one of the most psychologically interesting baseball manga in the Weekly Shonen Jump tradition.

The amnesia premise is praised for being treated with seriousness rather than used for easy comedy.

Memorable Scene ⚠️ Spoiler Warning

There is a moment in the early volumes where Haruna throws a pitch he has apparently never thrown before — and Kido catches it perfectly, because he has caught it hundreds of times in a past Haruna does not remember.

The scene is played quietly. Two people understanding each other through muscle memory and shared experience that only one of them can access consciously. It is the series' best moment.

Similar Manga

• Ace of Diamond — high school baseball with intense character dynamics
• Major — longest baseball epic in the genre; more conventional
• Cross Game — Mitsuru Adachi's restrained approach to the same sport
• Eyeshield 21 — different sport but similar "rebuilding from a specific limitation" premise

Reading Order / Where to Start

Start from Volume 1. The setup is immediately engaging and the series rewards reading from the beginning.

Official English Translation Status

VIZ Media has been publishing Forget Me Not Battery in English. Several volumes are available. The series is ongoing.

Pros & Cons

Pros

• Original premise used with genuine thoughtfulness
• The battery dynamic between Haruna and Kido is unlike any sports partnership in manga
• Technical baseball is excellent
• Character development is the series' strength

Cons

• Ongoing; long-term investment
• English release is a few volumes behind Japan
• The amnesia premise requires suspension of disbelief

Format Comparison

Format	Notes
Physical	VIZ volumes; standard quality
Digital	Available on VIZ platforms and Kindle
Omnibus	Not currently available

Where to Buy

Get Forget Me Not Battery on Amazon →

This post contains affiliate links. If you purchase through these links, I may earn a small commission at no extra cost to you. As an Amazon Associate, I earn from qualifying purchases.