>>14275504Suisei closed off her emotions and acts in a non instinctive way with no understanding of empathy and human connections.
She is likely not a real psychopath, but she lost her emotions likely from a high amount of suffering in her earlier life.
If she wants to recover her real emotions she will have to face her past and stop rejecting her suffering.
Sora is closer to normal but she showed her real weakness of character in one of nico streams when she didn't understand why she cared so much about the staff and had so much difficulty in choosing gifts for them in one of the events.She has a strong empathy and emotions, but the reason she cares is unlikely not because this is her real desire born from her meaning in life, but because she feels she has to which is unfortunately caused by a form of low self esteem and fear of being disliked.
She has great potential if she manages to overcome this fear one day and obtains the ability to express her own will at the expense of being disliked.