Ok,,,,,really starting to feel like Rin senpai def knows who she is. He's essentially crab-walking around her.
Also, do they take their widowed mother that brought them up all by her lonesome for a joke? Do they really think she doesn't know what they're doing? I mean, sending you hermit-like daughter, with essentially crippled social skills due to some trauma in middle school to a foreign speaking country to live alone, what kind of fast food therapy is that lol. She's someone that easily misinterprets social cues and chastises herself constantly...