The Summer Hikaru Died (Seasons 1–2)

The Summer Hikaru Died (2025) is a Japanese horror-drama anime you can watch online — a sweltering mountain village, an endless summer, and one unbearable question: who exactly came back wearing your best friend's face?

Six months ago, Hikaru disappeared for a week. He returned acting completely normal — same habits, same grin. But Yoshiki can feel the wrongness in his gut, and he finally says the thing eating at both of them: "You're not Hikaru." The thing inside the boy's body doesn't deny it. What follows is a tender, deeply unsettling story about a friendship that refuses to end, even when the person you loved is gone and something else is living in his skin.

Adapted from the manga by the artist known as Mokumokuren, it leans on dread rather than jump scares — a slow build of quiet horror and teenage attachment crossing a line it shouldn't. One for fans of rural, creeping unease like Higurashi. Stream The Summer Hikaru Died (2025) online on iFILM.