This trope is what results when a character has a particularly large number of siblings, and they're the only boy/girl. This can often result in the character hoping and praying for a sibling of their gender, Parental Favoritism in either the character's or all the other's favor, and the character feeling either superior or inferior to the rest. More often then not, said character is either the youngest or the oldest of them all. Subtrope of Massive Numbered Siblings. See also The Smurfette Principle and I Have Brothers Examples of Outnumbered Sibling include: