The song is most iconic for the scene where Mako Akagi asks the protagonist, Tatara Fujita , to "make her bloom". Tatara succeeds so well as a frame that Mako’s presence "spills out" across the floor, making her the center of attention while he remains almost invisible to the judges. Music & Edits

The track (Portuguese for "Red Flower") is a standout piece from the Ballroom e Youkoso (Welcome to the Ballroom) Original Soundtrack . Composed by Yuki Hayashi , it is often used in edits to highlight the anime's central metaphor: the Flower and the Frame . The Symbolism of "Flor Vermelha"

Welcome to the Ballroom (ballroom e Youkoso) [ALL final dances] COOL ANIME VIDZ•729K views. 2:01. YouTube·ordekvak

In the context of the series, the "Red Flower" represents the blooming potential of the female partner (the flower) supported by the male leader (the frame).

The female dancer is responsible for creating beautiful shapes and "blooming" on the floor.