Four teenage girls in school uniforms tread quietly across the desolate landscape and the wind howls. These youngsters are temporal voyagers who were dispatched 6000 years ahead, from a present where the same day repeats endlessly forever again, to escape humanity's demise.
They studied chrononautics at school, underwent aptitude evaluations, and were sent as planned. What should they do now? They had no clue, wondering how to navigate this strange future. The sole item from era that could accompany them was a toy‑like cellphone. Naturally, it receives no signal here.
While walking, they spotted peculiar birds soaring overhead and a faded river far off. The sky was painted with unfamiliar hues.
Finally, one girl discovered an abandoned dwelling and felt a chill. She recognized the name carved on its front gate.