A high school girl searches for her true purpose but finds a family secret instead. She takes it upon herself to uncover the past and accidentally unleashes monsters, strange powers, and a portal to other dimensions. Sakura wants to fit in but most days it seems like she belongs on another planet. Sakura and her mother have a close relationship but one day her mother starts ignoring her. The girl sneaks into her mother's room and opens the prized hope crest. She expects to find old letters or fancy clothes but ghosts and monsters come out! Sakura's mother fights the monsters off like a trained ninja but both her mother and father are sucked into the black hole at the bottom of the hope chest. Sakura follows after them… and the adventure begins.