Okay, I fully acknowledge I'm weird here, but I usually try to play through harem games where I romance everyone except the main, traditional love interest because I keep hoping I'll play one some day that will have foreseen that possible scenario and give me an ending where that love interest has to come to terms with the fact that the main character has fucked basically everybody she knows except her.
In this case, Annie, because she's the childhood friend with a crush on the main character and because she made me choose between her and Chang.