I've also found the game frustrating. As for me i wanted to know if Aiko really love the MC, or if he is just a poor toy to play with. The MC doesn't have proper reward indeed with Aiko, but as i put myself in the place of the MC i'm frustrated but love her in the same way. I've wanted many time to chose Azami but i didn't, just to see if there was a true love between them. And i've finaly found myself fall in love with Aiko even if its a fictionnal Character and even if i found her very cruel.