On the bright, wide country side of Japan, an academy lead by the infamous Rosen family chain for a solid six-hundred years, stands proudly glistened by the sun's rays. All the different intelligent species strive in the school's hallways while maintaining a mindset of a futuristic peace. The dear dream of the academy is to embrace a future of a united world where war and battling seizes to exist. But as the species gain knowledge and maturity on surviving beside one another, a certain race seeks to shatter an impossible dream. An organization named "Uragirimono", formulated by Human hands, has their own intentions in mind. They let their jealousy and driven hatred toward a dream to erase all species from the waters, lands, and skies that make up Planet Earth. The Earth God, Gaius, is slowly weakening as in his veins is also the balance of nature. And if his dearly beloved children, the species, can't concept a way to restore the balance, this world will be no more. Rosen Academy, Uragirimono, the species, the parallel world of the dead; will all be shattered from this once beautiful scenery. Rosen Academy, however, continues with restoring the balance. The school survives greatly through thick and thin.