You were adopted by a Human family.   As such, you struggled to fit in, much like the story of the Ugly Duckling. 

Note, Humans and half-humans (tieflings, half-orcs, half-elves, etc.)  can not take this background

Skill Proficiencies: Any one skill

Equipment: A bright red feather, a gold sequined glove that your adopted mother accidentally packed in your case, a dead pixie inside a clear glass bottle, an ornate broken blade  that no mage or smith can mend, an adamantine needle, a petrified chipmunk, a set of common clothing, 20 gp

Suggested Characteristics

d8

1:   You value family immensely,

2:   Morbid - people die so young

3:  You always brag about your feat.

4:  You are particularly tolerant of other species - just because someone is from an evil race does not mean they are evil.

5:  You think of yourself as unskilled, no matter how many skills you obtain.

6:  You want to find any of your original family you can.

7:  You think humans are better than your original species and wish you were one. 

8:  You love new ideas and want to try everything.