Ive thought was weird for a childhood friend in a romcom to not have feelings for the mc...
What a bummer. She could easily have a boyfriend or just have no interest in him, while still being used as pseudo rival for Riku.
That would actually be more refreshing than the often used cliche. Well, he clearly dont feel the same and already even kissed Riku, so i really hope the author dont cause more mess using Kokoro.