Introduction
Olive is cheerful but over-friendly to everyone.
Olive is the childhood friend of Catho, who he calls his "better half", but Catho doesn't even think he is a friend. After Catho leaved from his home, Olive went to the base of Flaoter to meet Catho, and he joined later.
Olive is interester in balloons, and he enjoys the physical contacts of balloons most. He is not afraid of overinflatin and popping.