Designing a kindergarten is seemingly a playful game without excessive architectural form operation, in which heuristic spaces are created for children to explore the world as well as themselves. Inspired by nature, the image of flower petals dancing in the wind shows up. Embedded with strong childlike sensation but never get rid of practicality, the petal-like volumes are assigned as several modules each containing specific functional program inside. This unique way of self-growing architecture maximizes the flexibility to accommodate various sites, making it a perfect prototype to be adjusted according to particular design conditions. Three module types are set as independent and replicable units, which can be prefabricated and then assembled on-site, forming a flexible system of construction within a controllable time and feasible to conduct in phases as well. The classroom module is carefully shaped to fulfill the daylight and scale requirements from the regulations, at the same time creating unique activity spaces for children. The modules are composed in a centripetal way, creating a large atrium, which serves as the core public space, while becoming cozy and childlike once decorated with vivid colors. Referring to the façade design, the idea of modularity persists. In total 10 colors of red and pink hues are picked to be computed into a gradient distribution of vertical louvers gently enveloping the modular petals. In addition, several scattered parts of the louvers are pulled out a little bit to spare some balcony greening spaces, making the façade vibrant in harmony with the rhythm of louvers. The façade appearances are all realized with the help of parametrical design tools. The symphonic dance of blended colors brightens the atmosphere of outer spaces, carving out an unconstraint paradise where kids can run, play, interact and grow with their friends.