In the town of Saima, when summer is about to begin, a group of six high school students intend to live a secret adventure by spending seven carefree days in a ruined mining facility.
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6.5/10Rating on TMDBFrom The Movie Database90 votes
Kyoko YoshineAya Chiyono (voice)
Takumi KitamuraMamoru Suzuhara (voice)
Haruka MichiiSaki Akutsu (voice)
Makoto KoichiMalet (voice)
Megumi HanKaori Yamazaki (voice)
Rie MiyazawaHitomi Nakayama (voice)
Takahiro SakuraiMasahiko Honda (voice)
Takeo OtsukaHiroto Honjō (voice)
Tatsuhisa SuzukiSōma Ogata (voice)
Mitsuru MiyamotoYamazaki - Kaori's Father (voice)
Ryusei NakaoHigh-level Politician (voice)
Tomokazu SekiImmigration Administrator (voice)
