What is ちゃんといた? Is it just and , "it was perfect"? It's from video game "Xenogears". Throne and Seraphita(villains) approach Fortress Jasper(where the heroes are) in their Gears(giant robots). First Throne, Seraphita right after her. Seraphita says: Throne:(answers to Seraphita) (this part refers to the heroes' plan)

is the perfect aspect of (to stay) here, which means to have stayed, in other words, "is there". (You use instead or when you refer to existence or presence of things that can essentially move themselves.)

is an adverb that basically means "properly" or "neatly", in this case it means how their target is there as is planed.

So it says "Throne, Throne, it's there, it's certainly there!".