The Summer Hikaru Died
Hikanatsu
Hikaru ga Shinda Natsu
Genres
- Horror
- Mystery
- Supernatural
Tags
all 20- TraitsMonster Boy97
- SceneRural95
- DramaTragedy94
- Main CastMale Protagonist92
- OtherCosmic Horror92
- FantasyMythology89
- OtherBody Horror87
- UniverseUrban Fantasy85
- Main CastPrimarily Teen Cast82
- FantasyCurses80
- RomanceUnrequited Love79
- RomanceBoys' Love78
- DemographicSeinen75
- TechnicalMixed Media68
- OtherPhilosophy65
- SceneSchool64
- TechnicalPOV57
- TraitsDetective55
- OtherDenpa52
- TechnicalCGI45
Genres: Horror, Mystery, Supernatural. Tags: Monster Boy, Rural, Tragedy, Male Protagonist, Cosmic Horror, Mythology, Body Horror, Urban Fantasy, Primarily Teen Cast, Curses, Unrequited Love, Boys' Love.
#108884
Popularity
4.0K
Favorites
108.9K
Members
#6
This Season
Popular TV
#9
This Season
Rated TV
#263
All Time
Rated TV
- Premiered
- Summer 2025
- Aired
- Jul 6, 2025 – Sep 28, 2025
- Broadcast
- Sunday · 00:55:00
- Duration
- 22 min
- Studio
- CygamesPictures
Alternative Titles
en-x-romajiHikaru ga Shinda Natsu
ja光が死んだ夏
enHikanatsu
enLato, kiedy umarł Hikaru
enO Verão em que Hikaru Morreu
enصيف وفاة هيكارو
en光死去的夏天
en光逝去的夏天
enDer Sommer, in dem Hikaru starb
enL'estate in cui Hikaru è morto
en히카루가 죽은 여름
enEl verano en que Hikaru murió
enหน้าร้อนที่ฮิคารุจากไป
enЛето, когда погас свет
Synopsis
It has been six months since Yoshiki Tsujinaka's best friend, Hikaru Indou, went missing in the mountains and returned a week later with no recollection of what had transpired. Certain that it is not the Hikaru he knows who came back, Yoshiki finally asks Hikaru about it. Suddenly, "Hikaru" reveals his true monstrous form and begs Yoshiki to keep it a secret, as he does not want to kill him.
Desp
It has been six months since Yoshiki Tsujinaka's best friend, Hikaru Indou, went missing in the mountains and returned a week later with no recollection of what had transpired. Certain that it is not the Hikaru he knows who came back, Yoshiki finally asks Hikaru about it. Suddenly, "Hikaru" reveals his true monstrous form and begs Yoshiki to keep it a secret, as he does not want to kill him.
Despite his paranormal nature, "Hikaru" seems almost innocent, full of childlike wonder and eager to experience the summer heat, the countryside, and all kinds of other things in a human body for the first time. And for Yoshiki, it matters little if "Hikaru" is a fake relying on stolen memories—as long as he never leaves again. As Yoshiki desperately clings to "Hikaru" in his intense grief, it becomes increasingly clear that something dangerous and supernatural may have descended from the mountains into their village.
[Written by MAL Rewrite]
Read moreRead less
It has been six months since Yoshiki Tsujinaka's best friend, Hikaru Indou, went missing in the mountains and returned a week later with no recollection of what had transpired. Certain that it is not the Hikaru he knows who came back, Yoshiki finally asks Hikaru about it. Suddenly, "Hikaru" reveals his true monstrous form and begs Yoshiki to keep it a secret, as he does not want to kill him. Desp
It has been six months since Yoshiki Tsujinaka's best friend, Hikaru Indou, went missing in the mountains and returned a week later with no recollection of what had transpired. Certain that it is not the Hikaru he knows who came back, Yoshiki finally asks Hikaru about it. Suddenly, "Hikaru" reveals his true monstrous form and begs Yoshiki to keep it a secret, as he does not want to kill him. Despite his paranormal nature, "Hikaru" seems almost innocent, full of childlike wonder and eager to experience the summer heat, the countryside, and all kinds of other things in a human body for the first time. And for Yoshiki, it matters little if "Hikaru" is a fake relying on stolen memories—as long as he never leaves again. As Yoshiki desperately clings to "Hikaru" in his intense grief, it becomes increasingly clear that something dangerous and supernatural may have descended from the mountains into their village. [Written by MAL Rewrite]
Where to Watch
Trailer

Status Breakdown
Tags
Shows how closely each tag relates to this animeShow spoiler tags5
Recommendations
Information
- Type
- TV
- Status
- Finished
- Premiered
- Summer 2025
- Aired
- Jul 6, 2025 – Sep 28, 2025
- Broadcast
- Sunday · 00:55:00
- Episodes
- 12 / 12
- Duration
- 22 min
- Studio
- CygamesPictures
Alternative Titles
en-x-romajiHikaru ga Shinda Natsu
ja光が死んだ夏
enHikanatsu
enLato, kiedy umarł Hikaru
enO Verão em que Hikaru Morreu
enصيف وفاة هيكارو
en光死去的夏天
en光逝去的夏天
enDer Sommer, in dem Hikaru starb
enL'estate in cui Hikaru è morto
en히카루가 죽은 여름
enEl verano en que Hikaru murió
enหน้าร้อนที่ฮิคารุจากไป
enЛето, когда погас свет