Here we are at chapter 4. These last two chapters have a story arc. This chapter makes me think that this series could have continued further than 5 chapters. It's kind disappointing when you consider the potential of the Furou twins and their predicament. I imagine some of the potential story material was used for the series after this one called "Unknown".
And now onto the release! Links to "Furou Kyoudai" Chapter 4: (Zip) (PDF)