Manji, a highly skilled samurai, becomes cursed with immortality after a legendary battle. Haunted by the brutal murder of his sister, Manji knows that only fighting evil will regain his soul. He promises to help a young girl named Rin avenge her parents, who were killed by a group of master swordsmen led by ruthless warrior Anotsu. The mission will change Manji in ways he could never imagine.
In an era where aliens have invaded and taken over feudal Tokyo, a young samurai finds work however he can.
The story focuses on high school girl Nagisa Yukiai who lives in a seaside town. She has believed her grandmother's story that spirits dwell in words and they are called "kotodama" (word spirit). One day, she strays into a mini FM station that has not been used for years. As an impulse of the moment, she tries to talk like a DJ using the facility. But her voice accidentally broadcasted reaches someone she has never expected.
