We live in a world where the power of Darkness and Light is passed from person to person. This balance maintains the harmony of the world: it's bright during the day and dark at night. Most people didn't believe this, but it was the truth. This balance was disrupted when the carrier of Darkness unleashed the power within, plunging the world into endless darkness and infecting people with it. Only the carrier of Light can restore the world's brightness and save humanity. Ana's life changed completely after the onset of Darkness. The girl suffered numerous losses because of Dorian, the carrier of Darkness. People live in fear as monsters hunt them, and fear has become a part of their daily lives. Ana felt lucky to have survived that day, and at first, she was filled with hope, waiting for the intervention of the Light. However, as the years passed, she slowly lost her hope. The Light didn't seem to appear or intervene. But why not? Ana begins to search for answers, unaware that these answers had been there in front of her all along.