Honestly as much as I wanna love this series, I can't for the life of me fathom what this guy's problem is with this cute, friendly gamer-girl wanting to spend time with him. Even if you argue she's being too clingy or he just doesn't wanna hang out that one day, why does he feel his only choice is to pretend his sister is his girlfriend? It just seems too forced for the sake of setting up the plot.