Royal Princess of Jurai, older sister of Princess Sasami, and rival of Ryoko for Tenchi. Aeka is a much more kinder person than Ryoko at times. She can be the sweetest and nicest person you have ever met...until she is around Ryoko.

Her rival Ryoko brings out a totally different side of Aeka. She tries to discipline Ryoko which usually means destroying everything around them. Their arguments are one the funny points to Tenchi Muyo, as a peacemaking Tenchi tries to stop their bickering.