TV-Series
Description
Merumo, also called Lilly, is a nine-year-old girl whose life fractures when her mother dies in a car accident. Thrust into the role of primary caregiver for her preschool-aged brother Totoo and infant brother Touch, her mother's heavenly wish grants Merumo accelerated growth to manage these burdens. Divine intervention delivers magical candies: blue ones instantly age her ten years into a nineteen-year-old woman, while red ones regress her ten years back into a child. Consuming both simultaneously first reduces her to a fetal state, then allows transformation into any animal.

Despite her changing body, Merumo retains the mind and emotions of a nine-year-old in every form. As an adult, she tackles demanding jobs like stewardess, police officer, or nurse to support her brothers, yet struggles with complex adult situations, including romantic advances she doesn't fully grasp. Her adult form's appearance occasionally leads to impractical clothing situations across different adaptations.

Merumo uses the candies to protect her brothers and solve their problems. One incident sees Totoo accidentally eat both candies, turning him into a frog for a prolonged period until she finds a way to reverse it. She also employs the candies to help others, such as transforming animals or aiding wildlife endangered by pollution. Professor Waregarasu, a political refugee from the fictional nation of Chicchaina, becomes a recurring guide, offering explanations on topics like human reproduction and sexuality.

Over time, Merumo forms a relationship with Jiro, whom she marries. Years later, she gives birth to a daughter embodying her deceased mother's spirit, symbolically reversing their original dynamic. Beyond her own story, Merumo recurs within Osamu Tezuka’s "Star System." In *Apollo’s Song*, she appears as Hiromi in narratives exploring love and sexuality. Throughout the *Black Jack* series, she features in various storylines, sometimes as an adult caregiver (a mother or sister) and other times as a child, consistently reflecting her core innocence and transformative abilities. These appearances maintain her narrative role as a lens on human development and relationships.