In neon-lit Tokyo, strange things bloom under the cover of darkness. Yume, a graffiti artist with a mysterious past, discovers she can paint doors between her world and a hidden realm of ancient spirits. When her mural sparks a surge of supernatural activity, she is swept into a secret war between humans and the Sakura Kami. Old boundaries begin to crumble, and Yume must uncover the truth about her identity before shadows devour both worlds.