Simply put , Ayeka thinks she's ....well..... in charge of everyone. She is a part of the house of Jarai which makes her a relative of Tenchi. Her brother,named Yosho who she was suposed to marry , is Tenchi's grandpa......Yet she still wants to marry Tenchi. In my opinion she's pretty messed up.She's also always messing with Ryoko when she's trying to get with Tenchi. I think Ryoko should teach her a lesson in respect.