Responses
I disagree, I think the similarities are at a bare minimum. <3
Acting in the shadows (MC), badass/ruthless/loyal buttler...
But yeah, their relationship and personalities are quite different from kuroshitsuji. Which is why I keep on reading :)
Some kuroshitsuji waves here, I just hope the author's not gonna emphasize the buttler's role too much (otherwise it'll be too akin to kuroshitsuji...)