The flower murders aren't a mystery to solve, they're a mirror held up to what violence costs the people wielding it. Every villain here has a reason that doesn't excuse them but makes you understand the shape of their breaking point. The action sequences use momentum and weight instead of just spectacle, and when a character who talks to plants becomes the key to understanding a killer's psychology, the show commits to that strangeness completely, even when the plot logic starts to fray.

A string of murders plagues the city, each one marked by delicate flower sketches left behind at the crime scene. Investigators suspect the pictured blooms are being used to drug the victims. Meanwhile, the Attractors of Fantasium Garden, fresh from their last battle, are settling in their newest members, and a new Attractor appears who can talk to plants. Both the Attractors and the Custos soon realize that the killer must be an Attractor. As the Custos close in to eliminate the culprit, Quon Mitsuchi sets out to save them, forcing him to weigh his ideals against the crimes of a serial murderer. The film blends action, mystery and supernatural science fiction.