Serenity Wheeler, known as Shizuka Kawai in the Japanese version, is Joey Wheeler's younger sister. The two were separated at a very young age when their parents got divorced. Serenity is depicted as being a sweet-natured, gentle, fragile and dependent young girl. She has a small fragile body, flowing auburn (brown/red) hair, and gentle green eyes. Throughout the whole series she is pictured as gentle but strong, with a never changing attitude of high spirits.
Ikran's F-Zero timeline
Serenity was hardly seen, up till Rick and Tinsel's wedding on Oct. 9, 2577. Even when Joey was describing his painful past with Rick as he sympathized with Tinsel for having a neglectful father.