She only wanted to find a lost elf, but the man she summons is Zephon, an incubus with a very different heart. Mistaking his attention for innocence, she teaches him songs and dances of courtship—never realizing he takes them as an answer. Once she tries to escape, he refuses to let her go. Then the past returns: ten years earlier, she promised a lonely demon boy she would come back. That boy was Zephon, and the prison he built may be hiding her first love.