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IMDbPro

The Summer Hikaru Died

Original title: Hikaru ga Shinda Natsu
  • TV Series
  • 2025–
  • TV-14
IMDb RATING
8.2/10
2.5K
YOUR RATING
POPULARITY
382
64
Shûichirô Umeda in The Summer Hikaru Died (2025)
Hikaru vanishes, replaced by an entity with his appearance, voice, and memories. The mysterious being maintains Hikaru's persona, making distinguishing it from the real Hikaru challenging as they continue their daily routines.
Play trailer1:26
2 Videos
9 Photos
Adult AnimationAnimeHand-Drawn AnimationPsychological DramaPsychological HorrorPsychological ThrillerSeinenSlice of LifeSupernatural HorrorSuspense Mystery

Hikaru vanishes, replaced by an entity with his appearance, voice, and memories. The mysterious being maintains Hikaru's persona, making distinguishing it from the real Hikaru challenging as... Read allHikaru vanishes, replaced by an entity with his appearance, voice, and memories. The mysterious being maintains Hikaru's persona, making distinguishing it from the real Hikaru challenging as they continue their daily routines.Hikaru vanishes, replaced by an entity with his appearance, voice, and memories. The mysterious being maintains Hikaru's persona, making distinguishing it from the real Hikaru challenging as they continue their daily routines.

  • Creator
    • Mokumokuren
  • Stars
    • Chiaki Kobayashi
    • Shûichirô Umeda
    • Chikahiro Kobayashi
  • See production info at IMDbPro
  • IMDb RATING
    8.2/10
    2.5K
    YOUR RATING
    POPULARITY
    382
    64
    • Creator
      • Mokumokuren
    • Stars
      • Chiaki Kobayashi
      • Shûichirô Umeda
      • Chikahiro Kobayashi
    • 25User reviews
    • 5Critic reviews
  • See production info at IMDbPro
  • Episodes12

    Browse episodes
    TopTop-rated1 season2025

    Videos2

    Official Trailer
    Trailer 1:26
    Official Trailer
    Official Teaser
    Trailer 0:54
    Official Teaser
    Official Teaser
    Trailer 0:54
    Official Teaser

    Photos8

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    + 5
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    Top cast21

    Edit
    Chiaki Kobayashi
    • Yoshiki Tsujinaka
    • 2025
    Shûichirô Umeda
    • Hikaru
    • 2025
    Chikahiro Kobayashi
    Chikahiro Kobayashi
    • Tanaka
    • 2025
    Yumiri Hanamori
    • Asako Yamagishi
    • 2025
    Wakana Kowaka
    • Rie Kurebayashi
    • 2025
    Seika Hirose
    • Kaoru Tsujinaka
    • 2025
    Shion Wakayama
    • Yuuki Tadokoro
    • 2025
    Lynn
    Lynn
    • Satou
    • 2025
    Takayuki Sugô
    Takayuki Sugô
    • Takeda's Grandfather
    • 2025
    Yoshiki Nakajima
    • Yuuta Maki
    • 2025
    Ryôko Shiraishi
    • Satoko Tsujinaka
    • 2025
    Kôji Ishii
    • Hajime Takeda
    • 2025
    Bin Shimada
    Bin Shimada
    • Tetsu Mikasa
    • 2025
    Setsuji Sato
    • Harasen
    • 2025
    Kazuko Sugiyama
    Kazuko Sugiyama
    • Matsuura-san
    • 2025
    Fuminori Komatsu
    • Toshinori Tsujinaka
    • 2025
    Takahiro Sumi
    • Leading Actor
    • 2025
    Natsu Yorita
    • Wife
    • 2025
    • Creator
      • Mokumokuren
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews25

    8.22.5K
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    10

    Featured reviews

    10SolG-82

    THE Gay Horror Anime

    Technically speaking, 3 episodes isn't enough to proclaim this is a masterpiece, but as a big fan of body horror mixed with queer subtext (and straight up text, I mean-) this is really everything I've ever wished for in a beautifully animated package. Sound design? Amazing. Voice acting? Stellar. You can't ask for much more perfection, really - the complexity is well captured even if the content is undoubtedly less lengthy than the manga. I wonder what emotions they'll be able to pull out of me in the next episodes but so far, this is beautiful and should already be scheduled for a second season.
    10camadams-38835

    Modern masterpiece of horror and grief

    The Summer Hikaru Died lingers long after you put it down. What begins as a quiet, almost nostalgic slice-of-life about two boys in a rural town slowly unravels into a deeply unsettling, emotionally charged horror story that cuts straight to the heart.

    The horror here isn't just supernatural - it's existential. The dread builds not from jump scares, but from the unbearable question: what if someone you loved came back... but wasn't them anymore? Yoshiki's inner conflict, his denial, his grief, and his quiet desperation are portrayed with haunting subtlety.

    The art is beautiful and atmospheric, often sparse but loaded with feeling. Every shadow feels intentional. Every panel carries weight. And the pacing is masterful - slow, deliberate, with a constant sense of something not quite right.

    This isn't just a horror manga. It's a meditation on identity, attachment, and the quiet horrors of change. It's intimate. It's terrifying. It's tender. A must-read for anyone who wants more than just gore and monsters - this is horror with a soul.
    10Warf-3

    Beautiful

    Just beautiful. Until now (first two episodes), the mystery and the horror aspects are both great. Also the relationship between "Hikaru" and yoshiki is very interesting. I wonder where the story, their relationship and the horror and mystery aspects go. Other than that, the visuals are STUNNING, animation wise and in terms of style. It reminds me of high budget anime movies like your name by makoto shinkai a little bit. But what I enjoy about the visuals are two things. 1: the characters and 2: the atmosphere. All characters look unique and different without looking unrealistic like in most animes with weird hair colors and weird proportions. And the summer atmosphere is just spot an as well. Perfect.
    10mahamedabdillahi-26511

    Haunting, Beautiful, and Unforgettable - A Masterpiece of Atmosphere and Emotion

    The Summer Hikaru Died is the kind of story that creeps up on you - not just with its supernatural tension, but with a deeply human core that lingers long after the final page or scene. It's a quiet, eerie masterpiece that blends horror, grief, and love with incredible emotional precision.

    Set in a small rural town wrapped in mist and isolation, the story follows Yoshiki, a teenage boy dealing with a terrifying realization: the friend he once knew, Hikaru, might no longer be human. What unfolds isn't your typical horror tale, but something far more nuanced - a melancholic coming-of-age wrapped in cosmic dread.

    The writing (or adaptation, if you're reviewing the show) treats its characters with rare sensitivity. There's no rush to explain the mystery or force cheap scares. Instead, it focuses on building atmosphere, tension, and the fragile, complicated bond between two boys navigating love, fear, and loss. The ambiguity of their relationship - romantic? Platonic? Something more cosmic? - is part of the beauty. It invites interpretation without ever feeling coy or incomplete.

    Fans of Mushishi, Shiki, or A Silent Voice will feel at home here, but Hikaru stands on its own as a rare piece of horror that dares to be gentle, even as it horrifies.

    This is a story about grief, love, and the unknown. About how we cope when someone we love changes into something we can't quite understand - or when we change ourselves. It's not just one of the best horror titles of the year, it's one of the most emotionally resonant stories I've encountered in a long time. Absolutely essential.
    10TheI-01

    Love this

    The Summer Hikaru Died is a haunting and beautifully crafted manga that blends psychological horror with deep emotional themes. The story revolves around Yoshiki and his childhood friend Hikaru, who returns after a mysterious disappearance-but something is very wrong. The manga masterfully explores grief, identity, and love, with an unsettling atmosphere and striking, delicate art. It keeps readers on edge through its slow-burn pacing and eerie tension. The characters feel raw and genuine, making the supernatural elements even more impactful. A must-read for those who enjoy thoughtful, unsettling stories.

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    Thriller

    Storyline

    Edit

    Did you know

    Edit
    • Trivia
      Mokumokuren first conceived of the series while studying for exams and later began posting drawings on Twitter, which led to the Young Ace Up editorial department approaching Mokumokuren to serialize the manga via the Young Ace Up website.

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    Details

    Edit
    • Release date
      • July 5, 2025 (France)
    • Country of origin
      • Japan
    • Language
      • Japanese
    • Also known as
      • 光逝去的夏天
    • Production companies
      • CygamesPictures
      • Kadokawa
    • See more company credits at IMDbPro

    Tech specs

    Edit
    • Color
      • Color
    • Sound mix
      • Dolby Surround 7.1

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