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.
Tighten security in the Engineer's 
Prefecture and Palace!
!شدّدوا الحراسة في منطقة وقصر المهندسين
Riegelt die Ingenieurspräfektur
und den Palast ab!
¡Refuercen la seguridad en el palacio
y las zonas de ingenieros!
¡Reforzad la seguridad en el palacio
y las zonas de ingenieros!
Renforcez la sécurité
du temple mécanique !
Rafforzate la sicurezza nella Prefettura 
e nel Palazzo degli Ingegneri!
Apertem a segurança na Província
dos Engenheiros e no Palácio!
Усильте охрану в инженерных палатах 
и всей провинции!