I'm thinking, one flaw that I did when making this forum is the absence of subforum to discuss Charmer-related topics...
Now, let's go into the topic.
Based on my interpretation, this is how I think about their personality:
: A person with a wisdom in her heart, she's polite and well-mannered because of this. She brings a lot of logic in her speech whenever she explains something. She's an analytical person that can distinguish people's personality and behaviors, whether it's good or bad, which makes her a person that can actually choose who's the best to be her friend. She's also a perfectionist and she dislikes things that are too simple. If you're her friend, she wouldn't mind to share you a great amount of knowledge, but beware she can talk about an overly complicated thing, which can make your head spins like a propeller.
: Phlegmatic person. Calm yet graceful, she's a friendly, patient, and understanding person. She'll never make a fuss and prefer peaceful situation. She'll never judge you and will accept you as who you are. She's compassionate and empathetic. If you have any problems, you can vent on her and she'll listen everything, making you feel comfortable since she understands what you feel. She's a flexible person to interact with. If you are not sensitive enough or you are dense, you probably won't notice whenever she feel sad, she'll never express that to you.
: Energetic but stubborn. She can be friendly, but on other hand, she can also be fierce and hot-headed. Out from all the other Charmers, she's a Queen of Spicy Mouth. She seeks what she think is a truth, and wouldn't hesitate to speak a painful, harsh critique for people that against it. If you or someone did a thing that against her own morals, she'll act first, then think later. She never afraid to speak loudly what comes in her mind. She's brave and she can be a big sister figure for her friends whenever they need her.
: A quiet, passive person. She doesn't talk much, and she can be shy whenever she feels uncomfortable to a person she currently interact with, and she tend to avoid them later. She's a type of person that hides her own problem to herself; she'll try to face her problem as strong as she can try, and if she can't bear it anymore, she'll ran away from said problem due to suffer and pressure that she never shared, this could be why she leaves Gusto tribe which also consists of her family. But, deep in her heart she's actually a kind girl that seeks freedom just like wind. If you want to be her friend, you need to make her feel comfortable first, otherwise she might feel shy and she'll avoid you.
: A loner, introverted guy. He usually don't care about anything that doesn't concern him. He dislikes being asked too much. If you can't impress him, he could look down on you. He's independent, and doesn't really like teamwork or things that involves him with other people. He prefer to be alone, and anything beyond that can be considered a bother by him. It's hard to make him happy. If you can make him did a warm smile, that means you're a precious friend for him, but that's not gonna be easy.
: Friendly, happy, and clumsy in one pack. Being an easygoing person, she can be friend for everyone. She'll always ready to do a chit chat with you whenever you want. She's a light that can make everyone smile and laugh when the situation called even if it would cost her pride in a humorous way. She can be a crybaby sometimes, but she'll be fine in no time. She believes all people have light side in their heart, even if they're terrible. She dislikes thinking about bad things that people did. It's easy for her to find people's good sides since she always stay positive.
So, yeh... Lyna is actually the easiest to be a friend, while Dharc is ridiculously hard, and can make me feel obnoxious to some extent and give up on him. Though, even Lyna can be a good friend for me, I don't think I will get along with her since her clumsy and crybaby traits could embarass me anytime. But I suppose it'll be REALLY FUN to tease her.
For Hiita, I never get along with this kind of people IRL. As for Wynn, I can imagine I'll have a lot of awkward moments with her since she's quiet and passive.
Aussa is great, she's polite and smart and she'll probably answer all of my scientific questions as long as I can endure the complicated things part. Eria is also great, she's empathetic and understanding and flexible just like water, it's always nice to talk with this kind of person. So... my choice is between Aussa and Eria.