TV series
Shinpei Ajiro travels home to attend the funeral of a childhood friend, and finds the remote island plagued by a sinister, supernatural force.
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Checked Sep 3, 2026
Summer Time Rendering is available to stream on Hulu in United States. Use the direct links below to open the provider.
Shinpei Ajiro travels home to attend the funeral of a childhood friend, and finds the remote island plagued by a sinister, supernatural force.
Choose an episode, then use the watch options above for the show.
Episode 1
Shinpei returns home for his friend Ushio's funeral. She apparently drowned, but something is off.
Directed by Shinji MatsudaWritten by Hiroshi SekoGuest stars Syukuko Tsugawa, Sakiko Kawai, Marie Oi, Takehiro Hasu, Syota Kaihori
Episode 2
To find out the truth about Ushio's death, Shinpei and Mio head to Hiruko.
Directed by Junichi YamamotoWritten by Hiroshi SekoGuest stars Marie Oi
Episode 3
After being stabbed by Mio's shadow, Shinpei regains consciousness at the docks on July 22nd.
Directed by Tohru IshidaWritten by Hiroshi SekoGuest stars Takehiro Hasu, Sachiko Honma
Episode 4
Ushio's shadow appears before Shinpei at the summer festival.
Directed by Ryuta YamamotoWritten by Hiroshi SekoGuest stars Ryosuke Hara, Kazunori Morota, Takafumi Maeuchi, Hideki Kojima, Shohei Tabuchi, Ellen Taira, Mika Okamoto, Mana Nakatomi
Episode 5
A giant shadow massacres everyone at the Hitogashima Summer Festival and engulfs the whole island.
Directed by Shinji MatsudaWritten by Hiroshi SekoGuest stars Masato Toyoshima, Kazunori Morota, Takafumi Maeuchi, Hideki Kojima, Shohei Tabuchi, Ellen Taira, Mika Okamoto, Mana Nakatomi
Episode 6
Hizuru Minakata, the woman on the ferry, returns to Hitogashima Island hoping to solve a mystery.
Directed by Yoshitsugu KimuraWritten by Hiroshi SekoGuest stars Syota Kaihori, Masamu Ono, Hideki Kojima, Ryosuke Hara, Ai Yamamoto, Yoshihisa Hosokawa
Episode 7
In order to defeat the Kobayakawa's shadows, Shinpei and Hizuru join forces with Nezu.
Directed by Yuu HarimaWritten by Hiroshi SekoGuest stars Ai Yamamoto, Yoshihisa Hosokawa
Episode 8
Mio's shadow appears before Shinpei and threatens him with a knife.
Directed by Yuri HagiwaraWritten by Hiroshi Seko
Episode 9
In a video, Ushio and her shadow recount their encounter up to the moment the video is recorded.
Directed by OyunamWritten by Hiroshi SekoGuest stars Mana Nakatomi, Rika Hayashi
Episode 10
Shinpei gains clues on Mount Takanosu since Ushio and her shadow had gone there.
Directed by Junichi YamamotoWritten by Hiroshi SekoGuest stars Yasushi Iwaki
Episode 11
Ushio, Sou and Shinpei are surrounded by shadows.
Directed by Tohru IshidaWritten by Hiroshi SekoGuest stars Ellen Taira, Sakiko Kawai
Episode 12
Tokiko, Sou's younger sister, reveals she has been offering corpses as food to Hiruko.
Directed by Jun ShinoharaWritten by Hiroshi SekoGuest stars Sakiko Kawai
Episode 13
It is the fifth July 22nd for Shinpei. Hizuru takes time to process that Shinpei is a time traveler.
Directed by Hayato SakaiWritten by Hiroshi SekoGuest stars Toshiki Watanabe, Rika Hayashi, Ai Yamamoto, Arisa Sakuraba
Episode 14
Shinpei finds himself in Hizuru's memories from fourteen years ago.
Directed by Chika NenbeWritten by Hiroshi SekoGuest stars Yui Shoji, Mai Sato, Ai Yamamoto, Yoshihisa Hosokawa
Episode 15
Heine, who loops like Shinpei, realizes the pattern of behavior when a new loop begins.
Directed by Tetsuo YajimaWritten by Hiroshi SekoGuest stars Ai Yamamoto, Yoshihisa Hosokawa, Sakiko Kawai, Shohei Tabuchi
Episode 16
Mio proposes to turn the shadows into allies.
Directed by Yoshitsugu KimuraWritten by Hiroshi SekoGuest stars Sakiko Kawai, Arisa Sakuraba
Episode 17
Shinpei hears about Shide's identity from Sou's father, Director of Hishigata Clinic.
Directed by Noriko TajiriWritten by Hiroshi SekoGuest stars Mana Nakatomi, Rika Hayashi, Serika Hiromatsu, Sakiko Tanaka
Episode 18
A seventy-year-old photograph reveals the truth.
Directed by Junichi YamamotoWritten by Hiroshi SekoGuest stars Mana Nakatomi, Rika Hayashi, Serika Hiromatsu, Ryo Kikuchi, Hideki Kojima, Tetsuya Tashiro
Episode 19
Karikiri and Heine strike. Mio and Hizuru learn of Ushio's death.
Directed by Tohru IshidaWritten by Hiroshi SekoGuest stars Ellen Taira, Mana Nakatomi, Rika Hayashi, Serika Hiromatsu
Episode 20
Hizuru and Karikiri face off, while Gil and Rose enter the fray.
Directed by Yuu HarimaWritten by Hiroshi Seko
Episode 21
Shinpei despairs over Hizuru's death. However, hope is on the horizon.
Directed by Katsuya OshimaWritten by Hiroshi SekoGuest stars Sakiko Kawai, Ryosuke Hara, Toshiki Watanabe, Yasushi Iwaki, Syota Kaihori
Episode 22
Ushio fully comes back to life. Shinpei heads to Hiruko's grotto.
Directed by OyunamWritten by Hiroshi SekoGuest stars Ellen Taira
Episode 23
After slicing down Heine, Shide brings Shinpei and Ushio to her home.
Directed by Hanako UedaWritten by Hiroshi SekoGuest stars Takehiro Hasu
Episode 24
After a fierce battle, Shinpei takes the place of an exhausted Ushio and confronts Shide.
Directed by Jun ShinoharaWritten by Hiroshi Seko
Episode 25
Shide is gone and Ushio's final iteration must vanish. Shinpei comes to on the morning of July 22nd.
Directed by Toshihiro MaeyaWritten by Hiroshi SekoGuest stars Sachiko Honma, Syota Kaihori, Ai Yamamoto, Mana Nakatomi, Rika Hayashi, Serika Hiromatsu, Takehiro Hasu
Episode information updated Sep 17, 2026
Natsuki HanaeShinpei Ajiro (voice)
Anna NagaseUshio Kofune (voice)
Saho ShirasuMio Kofune (voice)
Yoko HikasaHizuru Minakata (voice)
Jin UrayamaGinjiro Nezu (voice)
Kensho OnoSou Hishigata (voice)
Maki KawaseTokiko Hishigata (voice)
Akio OtsukaSeido Hishigata (voice)
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