Though Japan has been devastated by a century of civil war, Risuko just wants to climb trees. Growing up far from the battlefields and court intrigues, the fatherless girl finds herself pulled into a plot that may reunite Japan — or may destroy it. She is torn from her home and what is left of her family, but finds new friends at a school that may not be what it seems. Magical but historical, Risuko follows her along the first dangerous steps to discovering who she truly is.