Taking place in a Japan of the future, where the residue of a technologically advanced war lingers among a peaceful population, Koga, an eager beginner, becomes a member of the SHWD - a team of tough office workers who have been transformed into special forces. Alongside Sawada, a grumpy yet kindhearted instructor, Koga endures rigorous training in anticipation of her first mission in the field. But as she sets out on this crucial operation, will she have the necessary tools to confront the approaching nightmares?
