サラ

Likes: Ice cream, iced coffee
Dislikes: Civil servants

A genius scientist with an IQ of 300 who works in the same laboratory as the protagonist's father. Asu and Sara had developed Sora's personality program to serve as an assistant of Dr. Seto. The twins are involved in program maintenance and growth observation of the personalities of their robots.

Although Sara would never admit to it, she is quite clumsy. She has the luck of bumping into various objects and smashing them by mistake. These tendencies get in her way preserving her work competence due to a pride complex about how should a genius behave.