They don't like talking about it.
Karou is the shyer and quieter one out of the twins. She is almost always hiding behind her sister and she hardly ever says a word. If she does it's no louder than a whisper. She startles and scares easily and she get flustered easily and tends to blush a lot. She doesn't like loud noise and is terrified of thunderstorms.
Issa is the loud and bold twin. She is the talker between the two and she is almost always trying to embarrass her sister and make her do things she is uncomfortable with. Teasing aside, she is very protective of her sister and will defend her fiercely.