The Summer Hikaru Died

1. Replacement

Air Date: 2025-07-06

Yoshiki confronts Hikaru about his suspicions and discovers the terrifying truth. Even though they try to live normally, eerie incidents begin to occur.

2. Suspicion

Air Date: 2025-07-13

While Yoshiki and Hikaru accompany their classmates to a creepy mountain trail, a mysterious man arrives at Kubitachi Village and begins investigating.

3. Denial

Air Date: 2025-07-20

Recalling childhood memories with Hikaru, Yoshiki continues to struggle with his complex emotions. Desperate, he reaches out to Kurebayashi.

4. Summer Festival

Air Date: 2025-07-27

As Yoshiki attends the summer festival with Hikaru, the village elders fret over the recent death and Tanaka ends up with more questions than answers.

5. Wig Ghost

Air Date: 2025-08-03

When Yoshiki's sister spots a creepy clump of hair in the bathroom, Hikaru visits the Tsujinaka home to investigate — but things take a deadly turn.

6. Asako

Air Date: 2025-08-10

Yoshiki and his classmates discuss a story their teacher assigned them. Later, at a sleepover, Asako's sharp observations put her in grave danger.

7. Determination

Air Date: 2025-08-17

After the sobering realization that Hikaru is truly dangerous, Yoshiki decides that he must act and invites his best friend to skip school together.

8. Contact

Air Date: 2025-08-24

Yoshiki and Hikaru investigate Nonuki-sama and its link to Kubitachi's history. While at the library, they get an important lead from a surprising source.

9. Old Man Takeda

Air Date: 2025-09-07

Kurebayashi shares her knowledge about impurities with the boys. Later, the elder Takeda loses his temper over Hikaru's ignorance of the Indo's history.

10. Truth

Air Date: 2025-09-14

The boys' surprise encounter with Tanaka lands them in the hospital. When they return to school, Yoshiki pieces together the truth behind Nonuki-sama.

11. Episode 11

Air Date: 2025-09-21

12. Episode 12

Air Date: 2025-09-28