This is a kid and teenager adventure series based in Tokyo, Japan. Two girls get into exciting and inventive situations of their own making. Both currently the pampered and adored only child, they find out they soon will have siblings. Terrified - Kowai! They fear the loss of their mother's affection, doing lots of chores, and changing disgusting dirty diapers! They hatch a series of pranks around the neighborhood much to their parents' horror. Filled with Twists, Jokes, and Surprises.