HoshinaSan
When Aisha and Add first met, they didn't really talk to each other. Add used to be way more annoyed of her than Elsword was. She would always be yelling from the top of her lungs every time she and Elsword got into an argument. It would always distract Add from working because she never shuts up.
Although, as they start to grow, he begins to get used to her arrogant voice. In fact, he begins to like it, and finds it funny. Aisha may seem like an arrogant child, but she's actually a kind, and someone who's great to talk to. Add is the only one who notices that part of her.
When the El Search Party all reached their second classes (third stage), things began to slowly change between a couple of the members.