Happiness

Happiness is a young Harpy demoness who previously served as a subordinate under Haruki, a mid-ranking demon commander. When Haruki set off alone into the human world, she and her companions followed out of concern for his safety. Determined to blend into human society, she went so far as to pluck out all of her feathers, and through a twist of fate ended up becoming a maid-in-training in the home of the heroine Cecilia. Though she tends to speak little and carries an air of quiet mystery, she harbors a deep and unwavering devotion to her former superior.