I liked the four chapters, this story has potential, it is a pity that you have abandoned this story.
Except for a few minor details, I loved your story.
Its quite interesting, this whole debacle.
Time to protecc the loli and fck over the fate version of pedomaru in Miyu's world. The meeting between two onii-chans protecting their imouto will be a sight to behold. Both of them are pretty badass too.