Meat's older sister on Planet Kinniku, who is single.
Galbi is the middle-child of the Alexandria family, with an older sister Medium Rare Alexandria and a younger brother named Meat Alexandria. She is rarely seen in the manga and very much a comedic relief character, but her family appear to have love and respect for her as a person.
When Kinnikuman rescues the fiance of Meat Alexandria's older sister, he realises that she is engaged and asks whether he has any single sisters, and Meat reveals that he does have another older sister.  Galbi is introduced much to Kinnikuman's display, as she is not considered conventionally attractive, and she thanks him for looking after Meat during his absence on Earth. Kinnikuman observes the two sisters are completely different, while Galbi chases after him with admiration and desire.