Gate of Nightmares

A girl named Emma has become a "Nightwalker," capable of controlling creatures called "Nightmares," which are born from negative dreams. She meets a boy named Azel, who seems to have a special connection to the Nightmares, as they are drawn to him. The story takes place in two distinct worlds: Wistaria, where swords and magic coexist, and Remulias, where dreams manifest into reality.