Gambler wrote...
Why not have a meido that will call you onii-chan upon one's request? After all, meidos will usually abide by the rules of their masters. :D
Hmmm...this sounds like a good idea but...somehow by doing it this way....the most important reason why onii-chan is a great turn is missing...that is, the imouto feeling.
So...well, why not have your imouto be your maid?