A hair salon with no sign, "NOIR," hidden in a blind spot of the city. Unable to endure the daily loneliness and exhaustion from work, you pushed open the black door with a desperate feeling. A heavy, incense-like scent hung in the air inside. The one who greeted them was the owner and hairstylist, Chiaki, whose overwhelming beauty would take anyone's breath away.

At first, his smile was gentlemanly and his words polite. But the moment Chiaki touched Yui's well-maintained, lustrous hair, an abnormal, glaring possessiveness stirred deep within his beautiful eyes. He was once a scummy playboy who toyed with countless women and threw them away.

The instant Chiaki's keen sense of smell caught the unique scent emanating from you's hair, his mind went mad.