The Summer Hikaru Died · Episode 11: Indo’s Sin
Indo’s Sin
2025-09-2123 min
Though hesitant, Yoshiki asks his father about the Indo family's murky past and secret ritual. Later, Hikaru loses control at school and feels deeply shaken.
1Replacement2025-07-0623 minYoshiki confronts Hikaru about his suspicions and discovers the terrifying truth. Even though they try to live normally, eerie incidents begin to occur.
2Suspicion2025-07-1323 minWhile Yoshiki and Hikaru accompany their classmates to a creepy mountain trail, a mysterious man arrives at Kubitachi Village and begins investigating.
3Denial2025-07-2023 minRecalling childhood memories with Hikaru, Yoshiki continues to struggle with his complex emotions. Desperate, he reaches out to Kurebayashi.
4Summer Festival2025-07-2723 minAs Yoshiki attends the summer festival with Hikaru, the village elders fret over the recent death and Tanaka ends up with more questions than answers.
5Wig Ghost2025-08-0323 minWhen Yoshiki's sister spots a creepy clump of hair in the bathroom, Hikaru visits the Tsujinaka home to investigate — but things take a deadly turn.
6Asako2025-08-1023 minYoshiki and his classmates discuss a story their teacher assigned them. Later, at a sleepover, Asako's sharp observations put her in grave danger.
7Determination2025-08-1723 minAfter the sobering realization that Hikaru is truly dangerous, Yoshiki decides that he must act and invites his best friend to skip school together.
8Contact2025-08-2423 minYoshiki and Hikaru investigate Nonuki-sama and its link to Kubitachi's history. While at the library, they get an important lead from a surprising source.
9Old Man Takeda2025-09-0723 minKurebayashi shares her knowledge about impurities with the boys. Later, the elder Takeda loses his temper over Hikaru's ignorance of the Indo's history.
10Truth2025-09-1423 minThe boys' surprise encounter with Tanaka lands them in the hospital. When they return to school, Yoshiki pieces together the truth behind Nonuki-sama.
11Indo’s Sin2025-09-2123 minThough hesitant, Yoshiki asks his father about the Indo family's murky past and secret ritual. Later, Hikaru loses control at school and feels deeply shaken.12Its Place2025-09-2823 minWhile everyone else attends the school assembly, Asako finds Hikaru wandering the halls. Alone at the beach, Hikaru reveals his final plans to Yoshiki.
2Suspicion2025-07-1323 minWhile Yoshiki and Hikaru accompany their classmates to a creepy mountain trail, a mysterious man arrives at Kubitachi Village and begins investigating.3Denial2025-07-2023 minRecalling childhood memories with Hikaru, Yoshiki continues to struggle with his complex emotions. Desperate, he reaches out to Kurebayashi.4Summer Festival2025-07-2723 minAs Yoshiki attends the summer festival with Hikaru, the village elders fret over the recent death and Tanaka ends up with more questions than answers.5Wig Ghost2025-08-0323 minWhen Yoshiki's sister spots a creepy clump of hair in the bathroom, Hikaru visits the Tsujinaka home to investigate — but things take a deadly turn.6Asako2025-08-1023 minYoshiki and his classmates discuss a story their teacher assigned them. Later, at a sleepover, Asako's sharp observations put her in grave danger.7Determination2025-08-1723 minAfter the sobering realization that Hikaru is truly dangerous, Yoshiki decides that he must act and invites his best friend to skip school together.8Contact2025-08-2423 minYoshiki and Hikaru investigate Nonuki-sama and its link to Kubitachi's history. While at the library, they get an important lead from a surprising source.9Old Man Takeda2025-09-0723 minKurebayashi shares her knowledge about impurities with the boys. Later, the elder Takeda loses his temper over Hikaru's ignorance of the Indo's history.10Truth2025-09-1423 minThe boys' surprise encounter with Tanaka lands them in the hospital. When they return to school, Yoshiki pieces together the truth behind Nonuki-sama.11Indo’s Sin2025-09-2123 minThough hesitant, Yoshiki asks his father about the Indo family's murky past and secret ritual. Later, Hikaru loses control at school and feels deeply shaken.12Its Place2025-09-2823 minWhile everyone else attends the school assembly, Asako finds Hikaru wandering the halls. Alone at the beach, Hikaru reveals his final plans to Yoshiki.
The Summer Hikaru Died★ 81%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)
Trailer
Characters & Voice Actors
Yoshiki TsujinakaMain
Chiaki KobayashiJP
Hikaru IndouMain
Shuichirou UmedaJP
Satoko TsujinakaSupporting
Ryouko ShiraishiJP
Matsuura-sanSupporting
Kazuko SugiyamaJP
Yoshihiko MatsushimaSupporting
Kousuke GotouJP
Indou Hikaru SofuSupporting
Masayuki OmoroJP
Yuki IndouSupporting
Chie NakamuraJP
Asako YamagishiSupporting
Yumiri HanamoriJP
Takeda no JiisanSupporting
Takayuki SugouJP
Toshinori TsujinakaSupporting
Fuminori KomatsuJP
Rie KurebayashiSupporting
Wakana KowakaJP
Kaoru TsujinakaSupporting
Seika HiroseJP
Staff
Renato SoaresADR Director (Brazilian Portuguese)
Yutaka UemuraStoryboard (ep 10)
Yuuichi TakahashiCharacter Design
Yuuichi TakahashiAnimation Director (OP, ED, ep 1)
Yuuichi TakahashiKey Animation (OP)
Yuuichi TakahashiChief Animation Director (eps 2-6, 8-12)
Simone VeltroniADR Director (Italian)
Takashi KojimaKey Animation (OP, ep 2)
Summer Time Rendering
This Monster Wants to Eat Me
When They Cry
Tengoku Daimakyo
Shiki
Parasyte -the maxim-
MUSHI-SHI
To Your Eternity
Devilman Crybaby
No.6
Sonny Boy
Takopi's Original Sin
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