Mamiya Hibiki is a sincere young man with a bright personality. He works as a car mechanic and lives...
As a new community, the "House of Hope" has appeared. Who are they with a prosperous civilization? I...
Hibiki and Yuzuki set out on a journey to find Kurumi, Hibiki's lover who disappeared with a mysteri...
The story takes place 20 months after the end of Season 3. Hibiki has lost his friends and loved one...
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