قسمت 13: اریکو و شیho هنگام صعود به کوه با پژواک ترسناکی مواجه می‌شوند

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Two young women, Eriko and Shiho, are climbing a mountain. Shiho is having a great time hearing her own voice echo in the mountains, but Eriko just wants to enjoy the view in peace. Then a man's voice breaks through the still air, and the echoes Eriko and Shiho hear suddenly bring a sense of fear... (Source: Crunchyroll)