See, I keep seeing people praise the FMC, but just see how she reacted. I spoken before of giving her "slack" just for letting him stay at her house even with the insane rules.. But her reaction here was so unacceptable. And to remind you, there is no feelings between them and the marriage is fake (at this point and time). I dont really get whats praise worthy about the FMC over the sister (or any other character), what makes her ok, but the sister not ??. I thought it was great to see the little sis stand up for the MC (seen many times in manga whee the girl wont clear a misunderstanding the the MC gets hung out to dry). She might be a brat, and immature, but shes got it where it counts. Which is part of the reason I want to see her get close with the MC. Without her, the police would be coming for the MC right now. Cuse the older sis has a stick up her ass.
I think the sister and the MC fooling around has been the best part of about this series so far (even with a bit of the timing being off, going to the races before school?). 17 is legal where I am from, but I dont mind if they dont go all the way. But I hope to see em flirt a bit more, even when the older sis starts having feelings (if it eve happens lol)
All this said, it proves what seductive lady said a chapter or 2 back isnt wrong.. on the surface at least. Its why you cant refute her statement this point and time. To see how the MC is treated. Mc is doing her a favour (from what I understand of the marriage agreement), and she in turn treats him like trash. FMC might get development later, but you cant say shes any better than the sister or any other female character to appear. the FMC is also a bitch in her own part. Now its the role of the MC to straighten these bitches out ^_~