Responses
I think Shoma fell in love at first sight and couldn't leave the guy alone. I can understand that. He probably couldn't stop because he would imagine his brother and Nanami having sex just the two of them and he couldn't allow that happening.
Sometimes you just can't help falling in love, and Shoma fell in love with the wrong kind of guy but I'm glad he succeeded. I think it's almost a miracle, since love can change people but usually some habits can't be changed.
Love is blind, and so are hormones.
It was a good read, but Shoma annoyed me. He went into that sex friend arrangement knowing full well that Nanami was loose but he still got pissed about it, even to the point of getting jealous over brief phone calls. Pointless drama like that makes no sense to me and I don't find it entertaining. If someone's behavior bugs you that much, don't date them. Simple as that.