Author has written 2 stories for Kyo kara Maoh!/今日からマ王！.
Hi, Dooyoo here.
Also it can be a reference to "Do You?"
It is just a cute phrase .
Kyou kara maou
TVXQ, SS501, Go Younha, Gackt, Chaeyon, Hyori, 1tym, John-hoon/kim junghoon, Hwangbo
I think the list would continue forever if I listed all of them :)
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