Sera Female 10 years old (9 years old internationally) 135cm, 25kg She has long black hair and wears a blue shirt featuring a blue flower with a yellow smiley face. She is timid and blunt. She always plays by herself. She is dating Luke. (She eventually agreed to date him because he was so persistent, but she is gradually falling for his charms.) Although she is an elementary school student, she is as beautiful as a celebrity.