The continent of Ferbist is gradually getting used to a peaceful life after the terrible three-hundred-year war that ended 5 years ago with the destruction of the Gas Empire by the combined efforts of the six kingdoms. Not everyone found a new place in life, having lost the battlefield. Toru Akyura is one of them. He is a saboteur. From infancy he was trained as a tool of war, and now his skills are not needed by anyone. Living in poverty with his half-sister Akari, he spends his days indulging in laziness and melancholy. But now, having gone to the mountains to pick wild vegetables, he meets an unusual girl, exquisitely dressed, poorly speaking the continent-wide language and carrying a huge coffin everywhere. From that moment on, his life starts moving again...