((Blue Lock in ancient Japan))

So the characters of Blue Lock, specifically:
Bachira, Isagi, Nico, Rin, Sae, Shido, Chigiri, Kenya, Art and Kuon, end up in ancient Japan as servants to the concubine Miyu Matsumoto, or the wife of the "crow"...

She lived in the very corner of the inner palace... in a neat little palace... she had two girls in her service... Qiyu and Baiyu...

So the boys were brought to the entrance of her modest palace... and ordered to serve her faithfully and truly