Yume Yume☆You You

A girl named Yume, who is clumsy and lacks popularity, experiences a vision in class of a Miko who tells her she must become the new Miko. She finds a mirror in her hands and later discovers it is a portal to another world. A red-haired boy named Rekka appears, chasing a unicorn that maintains peace in his world. The Azure Dragon of the East opposes Yume being the Miko and attempts to harm her. Only Rekka among the otherworldly Guardians supports her. He destroys the mirror to prevent others from reaching Yume. The world Rekka comes from is struggling due to rapid development in the Light world. The unicorn is crucial to maintaining balance, and Yume and Rekka aim to return it. Rekka later becomes part of Kagura's family. A classmate, Aoi, is revealed to be the King of the Eastern Skies, prompting the group to seek the Guardians of the Light world to aid the unicorn.