Cobalt, Chrom, Kei, and Neon are androids living together in an abandoned house. In order to pay off a huge electrical bill, the four decide to compete for prize money at the Babel entertainment tower. After their first performance, they meet Esora, a boy struggling with the recent loss of his father. The encounter activates a special program within the four androids.
Hey, why did the humans 
build this place, anyway?
أخبروني، لمَ بنى البشر
هذا المكان بالأصل؟
Was meint ihr, wieso haben die Menschen
wohl so ein Gebäude gebaut?
Dites, vous savez pourquoi
les humains ont créé cette tour ?
Ei, por que os humanos
fizeram esse prédio?
Слушайте, а зачем люди вообще
построили эту башню?