Yoshiki Tsujinaka
main character
TV
8.1
My TrackerPLANNING
Episode: 0 / 12
My Score:
Anime DetailsFINISHED
- Format
- TV series
- Episodes
- 12
- Episode length
- 23 min
- Total watch time
- 4 h 36 min
- Status
- Finished
- Aired
- July 6, 2025 – September 28, 2025
- Season
- Summer 2025
- Source
- Manga
- Studio
- CygamesPictures
- Director
- Ryouhei Takeshita
- Original creator
- Mokmok Len
- Music
- Tarou Umebayashi
- Age rating
- PG — Teens 13 or Older
- Country
- Japan
- AniList score
- 81/100
Estimated watch time
4h 36m
⚡ 3 days at 5 eps/day
Tags & Tropes
Monster Boy97%Male Protagonist95%Rural95%Tragedy93%Cosmic Horror92%Urban Fantasy90%Body Horror88%Mythology88%Primarily Teen Cast82%Curses80%
TVFINISHED2025 SUMMER8.1 / 10 AniList score
The Summer Hikaru Died
光が死んだ夏• Hikaru ga Shinda Natsu
Synopsis
Two best friends living in a rural Japanese village: Yoshiki and Hikaru. Growing up together, they were inseparable… until the day Hikaru came back from the mountains, and was no longer himself. “Something” has taken over Hikaru’s body, memories, feelings… and everything they know begins to unravel. (Source: Netflix)
Should you watch The Summer Hikaru Died?
The Summer Hikaru Died has been very well received, with an average AniList score of 81/100 — 75% of 38,479 ratings are 8/10 or higher.
It ranks #22 highest-rated anime of 2025, and #9 most popular anime of 2025, and #9 highest-rated anime of Summer 2025 on AniList.
Of the 93.2K AniList users who started it, 6.5% dropped it, so it is dropped at a typical rate; 55.6K have finished it.
At about 4 h 36 min in total, it is a short commitment — a weekend binge.
Best for viewers who enjoy Horror, Mystery, Psychological — especially monster boy, male protagonist, rural, tragedy.
Where to Watch Officially
Availability, audio and subtitles vary by region and service.
Episodes
12 episodes are listed.
Trailer
Watch on YouTubeMain cast & voice actors
Creators & key staff
- Original creator
- Mokmok Len
- Director
- Ryouhei Takeshita
- Series composition
- Ryouhei Takeshita
- Character design
- Yuuichi Takahashi
- Music
- Tarou Umebayashi
Where it fits in the series
- Start here. The Summer Hikaru Died is the first entry in its story.
- Watch next: Hikaru ga Shinda Natsu 2nd Season
Related entries
Opening & ending themes
Openings (1)
- OP1“Saikai” by Vaundy · eps 2-
Endings (1)
- ED1“Anata wa Kaibutsu” by TOOBOE · eps 2-
Theme data from AnimeThemes.moe.
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The Summer Hikaru Died FAQ
How many episodes does The Summer Hikaru Died have?
The Summer Hikaru Died has 12 episodes of about 23 minutes each, roughly 4 h 36 min in total.
How long does it take to watch The Summer Hikaru Died?
About 4 h 36 min back to back. At two episodes a day it takes 6 days; at one hour a day, about 5 days.
Is The Summer Hikaru Died finished?
Yes. The Summer Hikaru Died has finished airing — the final episode aired September 28, 2025.
Is there a season 2 of The Summer Hikaru Died?
Yes — the story continues in Hikaru ga Shinda Natsu 2nd Season.
Where do I start The Summer Hikaru Died?
Start here: The Summer Hikaru Died is the first entry, followed by Hikaru ga Shinda Natsu 2nd Season.
Is The Summer Hikaru Died based on a manga?
Yes. The Summer Hikaru Died adapts the manga by Mokmok Len.
Who animated The Summer Hikaru Died?
The Summer Hikaru Died was animated by CygamesPictures and directed by Ryouhei Takeshita.
Who sings the opening of The Summer Hikaru Died?
The opening, "Saikai", is performed by Vaundy.
Where can I watch The Summer Hikaru Died?
The Summer Hikaru Died is listed on Netflix, YouTube. Availability varies by region — check the streaming links on this page.