The Summer Hikaru Died: Season 1
The Summer Hikaru Died is a 2025 Japanese animated television series classified for a TV‑14 audience and described as a blend of drama, mystery, and science‑fiction/fantasy. The series was created by Mokumokuren, who also authored the original manga that began serialization on Kadokawa Shoten’s Young Ace Up website in August 2021. The narrative follows two childhood friends, Yoshiki and Hikaru, who have been insepara
Season overview
The Summer Hikaru Died is a 2025 Japanese animated television series classified for a TV‑14 audience and described as a blend of drama, mystery, and science‑fiction/fantasy. The series was created by Mokumokuren, who also authored the original manga that began serialization on Kadokawa Shoten’s Young Ace Up website in August 2021. The narrative follows two childhood friends, Yoshiki and Hikaru, who have been inseparable in their quiet rural village. Six months before the present events, Hikaru disappears for a week. Upon his return, an entity that perfectly mimics Hikaru’s appearance, voice and memories assumes his identity, making it
Episodes
Replacement
Jul 6, 2025 · 24 min
Yoshiki confronts Hikaru about his suspicions and discovers the terrifying truth. Even though they try to live normally, eerie incidents begin to occur.
Suspicion
Jul 13, 2025 · 24 min
While Yoshiki and Hikaru accompany their classmates to a creepy mountain trail, a mysterious man arrives at Kubitachi Village and begins investigating.
Denial
Jul 20, 2025 · 24 min
Recalling childhood memories with Hikaru, Yoshiki continues to struggle with his complex emotions. Desperate, he reaches out to Kurebayashi.
Summer Festival
Jul 27, 2025 · 24 min
As Yoshiki attends the summer festival with Hikaru, the village elders fret over the recent death and Tanaka ends up with more questions than answers.
Wig Ghost
Aug 3, 2025 · 24 min
When 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.
Asako
Aug 10, 2025 · 24 min
Yoshiki and his classmates discuss a story their teacher assigned them. Later, at a sleepover, Asako's sharp observations put her in grave danger.
Determination
Aug 17, 2025 · 24 min
After the sobering realization that Hikaru is truly dangerous, Yoshiki decides that he must act and invites his best friend to skip school together.
Contact
Aug 24, 2025 · 24 min
Yoshiki 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.
Old Man Takeda
Sep 7, 2025 · 24 min
Kurebayashi shares her knowledge about impurities with the boys. Later, the elder Takeda loses his temper over Hikaru's ignorance of the Indo's history.
Truth
Sep 14, 2025 · 24 min
The boys' surprise encounter with Tanaka lands them in the hospital. When they return to school, Yoshiki pieces together the truth behind Nonuki-sama.
Indo's Sin
Sep 21, 2025 · 24 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.
Its Place
Sep 28, 2025 · 24 min
While everyone else attends the school assembly, Asako finds Hikaru wandering the halls. Alone at the beach, Hikaru reveals his final plans to Yoshiki.