A little yap abt shadows house bcs this has been implanted in my head LMAOOO

I remember the beginning of the story starts from the selection process, and then.. these kids gets brainwashed by these like adults or smth??? Yeah! And then, they became these faces of these shadow nobles and such like that. Honestly you guys should go check it out, I've lowkenuinley never seen a manga/anime with a quite of an interesting concept!!!1!!1