The year is 1990. The city is Tokyo, a busy megalopolis where people are caught in dreams, anonymity, loneliness, sadness and crushed hopes underneath the fevered rush for success and wealth. Sometimes the high-pitched emotions and acute despair manifest themselves into ghosts and curses.
Enter Sumeragi Subaru, 13th head of the Sumeragi clan and a 16-year-old onmyouji. He uses his spiritual power and genuine compassion to help people, exorcise trapped spirits and undo maledictions. In this modern world, where nothing is truly black and white, this is hardly easy, especially because of Subaru’s tendency to care too much for people. His twin sister Hokuto is there to help him, to cheer him up, and to make him wear eccentrically fashionable clothing. Sakurazuka Seishirou is a (male) 25-year-old gentle veterinarian friend of the twins, who professes to love Subaru.
Hokuto thinks that making them a couple would be a marvelous idea, even though – or maybe because – she believes that Seishirou is the mysterious Sakurazukamori, an assassin onmyouji said to protect Japan from the shadows.