A high school girl's love song tears a hole between worlds, and what pours through is pure 1985 animation fever, neon geometries, impossible ship designs, mechas that move like they're made of light. The plot is threadbare and the characters barely exist as people. What matters is that every frame looks like nothing else from that era, a visual argument that animation itself could be the story, a world so committed to its own strangeness that you stop asking why any of it is happening and just watch it burn.

Yohko is just another high school girl nursing a crush, so she pours her feelings into a song. What she doesn't know is that her melody acts as a key, opening a path between Earth and Ashanti, a sister world in another dimension. On the other side, a conquering force waits to invade, and the song she wrote might be exactly what they need. A legendary warrior named Leda separated these worlds eons ago, foreseeing this exact danger. Now that responsibility falls to Yohko. Thrust into Ashanti alongside new friends, including a talking dog named Lingam, she discovers she may be far from ordinary. What begins as a simple love song becomes the spark for a clash between worlds. Yohko has to use the powers of Leda's warrior, trust strangers in a strange land, and find a way to protect her world and return home.