Natsutsuki, who lives with her father, had a wicked affection for her, who had been a beautiful girl since she was young. Her father trusted Fujita, but Natsutsuki hated the man who sometimes looked at him with irritated eyes. At that time, my father will be on a business trip. Taking advantage of this opportunity, Fujita uses the "event app" he got to try to make Natsutsuki his own. "With this, you'll become my only maid." ! !