Fresh asphalt steams under a gray Seoul sky, and a girl with red glasses adjusts the knot on her crisp blue tie. Sayeon Lee spent her entire school career chasing perfect marks, dreaming of a prosecutor's badge, despising the Aberrants who wreak havoc with powers no human should possess. Her mother was one. Her sister still is. Sayeon swore she would never become them. Then the test came back positive.

Now she wears the black suit of the Aberrant Corps, a conscript in the very force she once admired from the safe side of the law. The Corps does not train heroes. It forges weapons, pits Aberrant against Aberrant, and buries the weak in unmarked graves before they earn their second stripe. Sayeon's gift lets her rewind time in sixty-second intervals — a reset button on any mistake, any wound, any death she reaches before the clock runs out. Her superiors see a tool. Her cellmates see a recruit who calculates every outcome before she offers trust. Sayeon sees the ladder. But when she discovers that the officer she answers to murdered the only friend she ever had, the ladder stops mattering. Revenge rewrites every timeline, and Sayeon is no longer climbing. She is hunting.

Also known as: 핸드 점퍼, Haendeu Jeompeo.