The Summer Hikaru Died Episode 11 is almost a week away, and this series is set up to become one of the most compelling supernatural dramas of 2025, blending eerie folk horror with an intimate story about friendship, loss, and devotion. After the shocking beheading in Episode 9 and the unsettling exposition of Episode 10, fans are eager to know what Episode 11 will bring.
The Summer Hikaru Died Episode 11 is officially set to air on September 27, 2025. And it promises to dive deeper into the mysteries of Nonuki-sama, Yoshiki’s strained family ties, and the growing unease around Hikaru’s true nature. Like previous entries, it will be available to stream on Netflix shortly after its Japanese broadcast.
Recap of Episode 10

Episode 10, aptly titled “Truth”, picked up after Tanaka’s shocking assault. Hikaru’s head was brutally severed, only for Yoshiki to desperately hold him together, both literally and emotionally. Instead of dying, Hikaru’s strange body revealed its alien, mercury-like composition, underscoring once more that he is not human but something older and more terrifying.
While both boys survived, the episode slowed its pace. Yoshiki began investigating the village’s past, unearthing stories of grotesque human sacrifices meant to appease Nonuki-sama. Exposition revealed how villagers would dismember victims, bury their limbs separately, and offer heads in particularly grisly rituals.
The post-credits scene rattled viewers the most: Hikaru, weakened and barely holding himself together, was shown hovering dangerously close to Yoshiki. The ambiguity left fans divided and deeply unsettled.
Perhaps the most overlooked yet critical detail from The Summer Hikaru Died Episode 10 was the sudden reappearance of Yoshiki’s father. After being nearly absent all season, he showed up in what looked like a rushed return from work, finally remembering he even had a son.

What’s particularly eerie is how ghosts in this world are tied to missing body parts, especially heads. Could Yoshiki’s father be involved? Or are the Indou family’s sins even worse than we think?
One of the most compelling aspects of The Summer Hikaru Died anime is Hikaru’s gradual evolution. Once a carefree boy, he is now torn between his monstrous origins and the human emotions he inherited or developed through Yoshiki’s bond.
The fandom has been buzzing with theories after Episode 10. Some speculate that Hikaru is an amalgamation of aborted children poisoned by mercury, which ties into the village’s horrifying history of using mercury in crude pills.
Others believe he is a mountain god born from impurities, his body resembling mercury in the way it flows and reacts to heat. What also worked well was the way the show blended supernatural horror with human emotion. The shrine sequence and the grotesque reveal of severed heads tied perfectly into the village’s bloody history, escalating the sense of dread.
What to expect from The Summer Hikaru Died Episode 11 (Speculative)

With only two episodes left in the season, The Summer Hikaru Died Episode 11 is poised to set the stage for the finale. Key threads that could converge include:
- Yoshiki’s father revealing his knowledge of the curse.
- Hikaru’s unstable body forcing him to choose between humanity and monstrosity.
- Tanaka making his most dangerous move yet.
- The long-awaited revelation of what truly happened to the sacrificed heads.
The Summer Hikaru Died Episode 11 may push Hikaru to his breaking point. Will he resist the primal hunger gnawing at him, or will he succumb, making Yoshiki his final victim or his salvation?
If the series stays true to its chilling roots, The Summer Hikaru Died Episode 11 may leave viewers shaken with another brutal cliffhanger, ensuring the finale lands with maximum impact.