Traveling entertainers Yin and Ning are very close sisters.
Yin cares for her armless sister as they travel between villages, putting on performances of swordplay and dancing.
When they arrive in the ruins of a village, they find a mysterious bamboo writing strip.
The strip glows, and from within it a strange girl and a single sword appear.
Meanwhile, in the Taibai Empire bent on conquering the Shenzhou region, a boy name Zhao is working as a slave.
Zhou, who has been teaching himself engineering, meets a young girl one night.
Retreat! All units fall back!
!انسحاب! لتتراجع كلّ الوحدات
Rückzug! Alle Einheiten zurück!
¡Retírense! ¡Retírense todos!
¡Retiraos! ¡Marchaos todos!
Toutes les unités ! Repliez-vous !
Ritirata! A tutte le unità, ripiegate!
Recuem! Todas as unidades, recuar!
Отступаем! Всем назад!