The series describes the adventures of a race of tiny people (pixies) who live in a simple village in Foothill Forest. It focuses in particular on a group of children: Lillibit, Willibit, Snagglebit, Chip, and Browniebit. Snagglebit, the spoiled son of the mayor, is enamored of the beautiful Lillibit, but she's best friends with Willibit, the moral role model and main protagonist. Thus, even though they generally get along well, Willibit and Snagglebit often butt heads, especially over Lillibit. Snagglebit usually pals around with the short-in-stature Browniebit, who is something of a coward (and is often teased by Snagglebit for this), and Chip, who idolizes Lillibit's uncle, Dr. Snoozabit, and wants to be a doctor like him.

Another frequently recurring child character is Teenybit (Willibit's younger sister), who befriends Scarybit, an ill-tempered, superstitious old woman assumed to be a witch and shunned by most of the other villagers. Teenybit can see that, under Scarybit's tough exterior, she's just a lonely old lady who needs a friend.

The children are watched over by, and often scolded by, the older Littl' Bits including the doctor Dr. Snoozabit, the wood-cutter Chopabit, the baker Bakeabit, Willibit's father Grumpabit, Helpabit, the elder Elderbit, Mayor Bossabit (Snagglebit's father), and others. Snoozabit has a tendency to drink too much, forcing his young niece, Lillibit, to watch out for him and do her best to keep him on the right track (In the American version, Snoozabit's drunkenness was rewritten as being constantly sleepy and needing a nap, hence his English name).

Dr. Snoozabit has raised Lillibit since her infancy, and has always told her that her birth parents died shortly after she was born. Not having a mother and father around occasionally depressed Lillibit, especially when she observed her friends having fun with their parents. However, in the second-to-last episode of the series, it was revealed that Lillibit's parents were in fact