In 1929 Shanghai, a string of brutal murders targeting showgirls uncovers a dark conspiracy tied to a powerful underground network. A forensic doctor, a sharp-witted detective, and the owner of a lavish dance hall form an unlikely alliance to expose the truth, risking everything to shine a light on the city's darkest secrets.

Daishi Morimiya is a high school student whose dream is to become a wheelchair, track-and-field athlete. In addition to that, Miyako Fukai, a former wheelchair athlete, becomes Daishi’s coach. One day, a handsome alien falls from the sky when Daishi was practicing with Miyako, surrounded by his friends and father (who is employed at an old factory). The handsome alien named Goo, after escaping a mass genocide somewhere in Earth’s binary star, warns Daishi and his friends that Earth is in danger. Then, a giant lizard-like monster who is after Goo, attacks Daishi’s household. That’s when Goo’s Mode Shifter begins to emit light, radiating Daishi. His body is completely transformed by a special protector. The transformed Daishi charges at the monster while still in his wheelchair.