1000 nin no Homunkurusu no Shoujo tachi ni Kakomarete Isekai Kenkoku

Dragged by the ritual for the revival of the evil god of a different world, an ordinary senior high school student Furutera Isshi meets 1000 Homunculus girls that were created for the sake of sacrifice. Hearing about the horrible treatment of them being just tools for the humans, he decided to found a nation for Homonculi