The Summer Hikaru Died Episode 11 Teases Dark Secrets

Tokyo, Japan — The highly anticipated Episode 11 of the anime series The Summer Hikaru Died is set to air on Sunday, September 21, 2025, at 12 a.m. PT. The episode promises to delve deeper into the dark and mysterious history that surrounds the characters, particularly focusing on the relationship between the Indo family and a local tradition known as Hichi-san.

The episode begins with protagonist Yoshiki Tsujinaka confronting his estranged father, Toshinori. This is their first conversation in years, and it leads to a revelation about a tradition he and Hikaru’s father, Kohei, wished to keep from their children. This conversation unfolds important historical details about the villagers, who faced starvation centuries ago due to their cursed land.

As Yoshiki learns more about Nonuki-sama, a deity tied to the villagers’ gruesome past, the episode exposes the unsettling truth. “This place is a freaking murder village?” Yoshiki reflects, summarizing the horror of their situation. Hikaru Indo, who has returned from a week-long disappearance, grapples with his identity, revealing that something has taken control of his body and memories.

The tension escalates as the audience is introduced to visceral images within the Indo shrine, filled with wooden heads. These grotesque details serve to accentuate the series’ themes of supernatural horror and loss. As Hikaru’s memories begin to surface, he confronts the inner chaos brought by his possession, struggling between human emotions and alien instincts.

Episode 11, titled “Indo’s Sin,” adds layers to the story by exploring the characters’ backstories and deepening the lore surrounding Nonuki-sama. Supportive characters, including Rie, provide unexpected sources of comfort for Hikaru as he navigates his new reality.

Fans of the series can stream The Summer Hikaru Died on Netflix shortly after its broadcast in Japan, allowing for international audiences to engage with the story in real-time. With just one episode left in the season, viewers are left anticipating how the plot will resolve Hikaru and Yoshiki’s emotional turmoil.