Ignorance is bliss.
1. Haruka molts. All over. Everywhere. The house is covered in feathers and fluff, and Haruka... is not.
2. Every morning, Haruka stands in front of the mirror and sings a surprisingly varied selection of songs, both traditional and modern. And he sings very badly.
3. Haruka is easy to feed. Sure, he can get food simply by standing around and smiling, but he also doesn't mind eating something Youko left out for his dinner the previous night even if he only gets back in the morning. Once Kantarou saw him eating day-old sushi.
4. Two words: Bed hog.
5. Haruka looks at his eyes much the same way he looks at any of the shiny baubles he collects.