The flame that burns twice as bright burns half as long, and
so it is with the lives of young shinobi. Death comes swiftly — for the
lucky ones — and for those still living, grief is a constant companion.
Ryōbi and Ryōna, two shinobi sisters of the Hebijo Clandestine Girls’
Academy elite, know that truth all too well, and they mourn their
beloved elder sister every day.But when a mystical phenomenon
appears, drawing the shinobi world’s finest young ladies into a parallel
dimension, everything they know about life and death turns upside down.
Taken to a strange world resembling a warm summer island, the girls
find themselves face to face with their departed loved ones.The
island’s mysterious mistresses challenge the girls, who hail from four
different rival schools, to a contest of strength and wits. The winning
school, so they promise, will not only learn the highest secrets of
shinobi lore, but will also have the honor of laying their loved ones’
souls to rest.The buxom beauties prepare for a new kind of