Ep. 8: Rinne and Setsuna return to the mysterious island from five years ago
Aired on August 19, 2018

Upon waking, Rinne and Setsuna find themselves gazing at the blue sky from five years prior. They have returned to the mysterious island where they originally parted ways forever. While Rinne feels excited to see the real Setsuna again and resolve their past issues, the reunion brings unexpected complications. Instead of simple closure, they encounter a series of riddles, tears, and darkness that complicate their situation. The source material notes that these events unfold on the island significant to their history, challenging their expectations of a straightforward resolution.
Episodes
- Ep. 4 · Setsuna Accompanies Karen to the Mainland for a Motherly Reunion Amidst Hidden Secrets
- Ep. 5 · Sara’s urgent hypothesis about Setsuna’s return meets Rinne’s dark confrontation.
- Ep. 6 · Rinne bids farewell to her past while Kuon harbors misgivings about the future.
- Ep. 7 · Rinne's haunting memory and Setsuna's revelation lead to a sudden disappearance.
- Ep. 8 · Rinne and Setsuna return to the mysterious island from five years ago
- Ep. 9 · Setsuna assists Rinne with a mysterious invention in an ice-encased underground shelter-city.
- Ep. 10 · Setsuna seeks a hopeful future for the city while making a final promise to Rinne
- Ep. 11 · The characters meet again, but their identities remain unknown to each other
- Ep. 12 · Characters hold hands to reach tomorrow