The Summer Hikaru Died Episode 10 Preview and Synopsis Revealed

The Summer Hikaru Died anime‘s official website unveiled the preview and synopsis for up and coming episode 10 titled “Truth”.

Here’s the trailer for the upcoming episode.

The synopsis is as following:

“After sleeping for two full days, Hikaru finally wakes up—much to Yoshiki’s relief. But Hikaru is clearly weaker than before and now feels pain. As Yoshiki and the others reel from a sudden attack by a mysterious man wielding a seemingly cursed sword, Tanaka confronts Takeda. It seems Tanaka has his own objective—one that goes beyond the mission assigned to him by his company…”

The Summer Hikaru Died Episode 10 will be released on September 14, 2025.

The Summer Hikaru Died is a captivating Japanese manga crafted by the talented Mokumokuren, both as writer and artist. Its serialization kicked off in September 2021 on Kadokawa Shoten’s digital platform, Young Ace Up. By July 2025, the manga’s chapters have been compiled into seven tankōbon volumes. The narrative centers on Kenta Yamashiro, a young teen in a tranquil Japanese countryside, who grapples with the chilling realization that his childhood friend, Hikaru Soma, is no longer himself but is instead inhabited by a mysterious, otherworldly being. Kenta must navigate their altered bond while facing eerie supernatural threats.

The series was born from Mokumokuren’s creative spark during a study break, with initial sketches shared on social media catching the eye of Young Ace Up’s editors, who invited Mokumokuren to serialize the story. The manga’s success led to an anime adaptation by CygamesPictures, which debuted in July 2025.

The manga’s first volume was a resounding hit, selling 200,000 copies within three months and earning widespread acclaim for its gripping plot, stunning visuals, and deeply nuanced characters.

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