Diamond is Unbreakable - Episode 25

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Atom Heart Father (アトム・ハート・ファーザー Atomu Hāto Fāzā) is the twenty-fifth episode of Diamond is Unbreakable and the ninety-ninth episode of the JoJo's Bizarre Adventure anime. It covers Chapter 365 through Chapter 370 of the manga.

After Kira escapes the heroes and changes his face and identity, they decide to search his house for any potential clue but instead meet with the ghost of Yoshihiro Kira, who is bent on protecting his son at all costs.


In an average house in Morioh lives the apathetic Shinobu Kawajiri and her equally apathetic son Hayato. Shinobu's husband, Kosaku, has always been a very dull man, living life by a very basic routine. One day, however, when Kosaku returns home, he starts cooking dinner for the first time in their marriage.

The serial killer's father, Yoshihiro Kira, inside a polaroid

Meanwhile, Jotaro, Josuke, Koichi, and Okuyasu are at Yoshikage Kira's old home looking for any noteworthy traits that they can use to track him down. However, they only see that Kira made sure not to stand out in his life, and uses the lengths of his nails to divine his good luck when he wants to kill someone. A polaroid camera suddenly snaps a picture of Jotaro and Josuke, strangely containing the image of Kira's late father Yoshihiro sitting behind them. It is the ghost of Yoshihiro who has trapped Jotaro and Josuke with his Stand Atom Heart Father inside the photographed space, and Yoshihiro, able to influence anything from inside the photo, prepares to behead Josuke and Jotaro. However, Jotaro takes a photograph of Yoshihiro alone, which forces the ghost out of the original picture and traps him in the second one, before folding this new photo in two, taping it shut, and tacking it onto the wall.

Yoshihiro Kira steals the second Bow and Arrow from Josuke

The gang continues their search, but Yoshihiro manages to bluff Okuyasu into releasing him. Yoshihiro escapes, stealing the second Bow and Arrow from Josuke and fleeing successfully. Jotaro determines that this must have been a different set and deduces that DIO and his assistant Enya must have used multiple arrows to efficiently create a team of powerful henchmen during his reappearance a decade ago. While leaving, Yoshihiro contemplates how even though his son is a killer, he is willing to protect him as long as it makes him happy.

Yoshikage Kira disguises as Kosaku Kawajiri

Back at the Kawajiris' place, Shinobu continues to notice her husband changing his lifestyle in many small ways. This soon comes to a head when their landlord shows up, demanding money that Kosaku had been failing to pay for several months. As Shinobu's insists on taking some cash from their safe, Kosaku approaches the landlord and summons Killer Queen, destroys the lock on the landlord's bag, steals his money, then pretends to pay the man upfront with enough money to cover the Kawajiris' debt both now and in the months ahead. Thus Kosaku Kawajiri is revealed to be Yoshikage Kira in disguise, and Kosaku is indirectly revealed to be the man he killed to acquire his look. As the landlord leaves, Shinobu accuses her "husband" of having secretly stolen the money from him prior to today. However, despite this complaint, she finds his new behavior romantic.


Yoshihiro Kira
(1st appearance)
Shinobu Kawajiri
(1st appearance)
Kosaku Kawajiri
(Mentioned only)
Hayato Kawajiri
(1st appearance)
Kawajiri Family Cat
(1st appearance)
Kai Harada
(Voice only)
Enya the Hag
Dio Brando


Script (脚本)
Shinichi Inotsume[1]
Storyboard (絵コンテ)
Eri Nagata[1]
Episode Director (演出)
Eri Nagata[1]
Animation Director (作画監督)
Animation Director Cooperation (作画監督協力)
Assistant Chief Animation Director (総作画監督補)
Action Animation Director (アクションディレクター)
Key Animation (原画)
White Line
Jung Ha Seo
Seoung-Woon Ko
Cha Myoung Jun
Hyun-Ae Kwon
Sul-A Kang
Hyeon-Guk Kang
Yeop Kim
Yung Ha Kim
Joung Hwa Joung
Han-Il Kim
2nd Key Animation (第二原画)
White Line
Jin-Hee Park
Zan-Di Lee
Shuhei Fukuda
Kashiwa Anezaki
Natsue Chibayama
Masashi Yamada
Yoko Uchida
Yuu Matsuo
Yuri Yamamura
Masaki Kosaka
Akihiro Otake
Eiichi Kuboyama
Yoko Kuboyama
Yoshihiro Yoshioka
Kasumi Takeuchi
Keisuke Nishijima
Abunaga Muraki
Nana Yamazaki
Asahi Production
Triple A
Design Cooperation (デザイン協力)
Yoko Uchida
Eyecatch Illustration (アイキャッチ原画)


DU Episode 25: Atom Heart Father
Start End Title OST Description

The Alley
Diamond is Unbreakable ~Good Night Morioh Cho~
Shinobu Kawajiri's miserable married life
Morioh Town Radio
Diamond is Unbreakable ~Good Morning Morioh Cho~
Shinobu's husband makes dinner
Diamond is Unbreakable ~Daydream~
Investigating Kira's house
Shadow Lurking in Town
Diamond is Unbreakable ~Good Morning Morioh Cho~
Kira's uneventful past, and his bottled nails
A Lurking Evil
Diamond is Unbreakable ~Good Night Morioh Cho~
Kira's nail record
Between the Silence...
Diamond is Unbreakable ~Good Night Morioh Cho~
Yoshihiro Kira's ghost plans to kill Josuke and Jotaro
Diamond is Unbreakable ~Good Morning Morioh Cho~
Josuke tears the photo
The Hand
Diamond is Unbreakable ~Good Morning Morioh Cho~
Okuyasu tries to intervene
Diamond is Unbreakable ~Good Morning Morioh Cho~
Josuke & Jotaro trapped in the photography
Secret Plans
Diamond is Unbreakable ~Good Night Morioh Cho~
Yoshihiro takes out a knife
Stardust Crusaders
Stardust Crusaders (Departure)
Jotaro neutralizes Yoshihiro
Stardust Man Appears
Diamond is Unbreakable ~Good Morning Morioh Cho~
The heroes resume their search
Diamond is Unbreakable ~Good Morning Morioh Cho~
Yoshihiro escapes with an Arrow
The Fate Which Still Remains
Diamond is Unbreakable ~Good Morning Morioh Cho~
There were several Arrows
Another Face, Same Mind
Diamond is Unbreakable ~Good Night Morioh Cho~
Kosaku Kawajiri is not himself today
A New Courage
Diamond is Unbreakable ~Good Night Morioh Cho~
Kosaku has changed/The owner demands the rent
I Want You
I Want You
Diamond is Unbreakable -Main Theme-
Diamond is Unbreakable ~Good Morning Morioh Cho~
Next Episode Preview

Manga/Anime Differences

  • Changed the order of events by putting some of the Kawajiri chapters before the events at Kira's villa.
  • Added Hayato talking to himself about cameras, foreshadowing Yoshihiro's appearance.
  • Added a new Morioh-Cho Radio segment.
  • Removed Koichi reacting to Okuyasu wondering if there are parts of Kira's victims inside the house, Jotaro stating that Kira still has his original left-hand fingerprints and Josuke wondering about Kira's habits.
  • Added Koichi passing through Yoshihiro's area again by mistake.
  • Removed Okuyasu's being impressed by how precisely Jotaro folds the picture, his explanation about how ghosts can't breathe and Yoshihiro remembering how he got the arrow.
  • Removed Shinobu's statements about her family's current fiscal situations
  • Changed Hayato's scene where instead of pajamas and holding a plane he's walking home from school. In addition, it skips the part of how Shinobu complains about how Hayato trapped her in a loveless marriage.
  • Removed part where Kira physically went to the safe and didn't know how to open it.
  • Skipped part where landlord acts nice at first before yelling at the Kawajiris to pay their rent.


In this episode, we’ve changed the way we look at colors. Yuko Sato, the color designer, did a fantastic job with the fight scene against Kira’s father. It’s a motif we end up using for similar scenes in subsequent episodes. It’s funny, I've been working with the same people for quite a long time, yet they still manage to surprise me.

As for the storyboard and the directing, Eri Nagata was in charge of both, much like Episode 18. It's an episode full of small comedic moments, but she’s been great.

Also in this episode, we discover the Kawajiri residence. Many of us at the studio said that it felt like a soap opera. I had to actually ask myself where this series was going when I saw the last scene with Shinobu surrounded by flowers. (laughs).

I had been looking for a long time for how to portray the Stand of Kira’s father on-screen, but I think we’ve reached a satisfying result. I advise our audience to not think too much and to simply feel things out.
Naokatsu Tsuda, Blu-Ray limited edition commentaries


  • In the official English subs and dub, this episode's title is changed to "Heart Father" to match Atom Heart Father's name change to "Heart Father" by Warner Bros. Animation's American branch to avoid possible legal action.
  • When DIO was mentioned, his appearance remained in the previous season's art style.