Sephiroth chuckled. "Come now, your Highness, the young lady merely dozed off after she'd realized that there was no danger. You don't honestly think that she can be at your beck and call at every moment of the day, do you?" 
He paused to laugh again. 
"For shame! Do you see [i]me[/i] being shadowed by a royal guard? And here I am in the middle of a room-full of Angels. Besides, even guards need to have a break every now and then. So do be sensible and perhaps instead focus on the task at hand, and leave the poor woman be." He chastised the princess in good humor.

"And I thought Demons were supposed to be the least forgiving." He added with a mild smirk, which soon gave way to his previous, more serious tone. He returned to the previous topic.

"If we are agreed, then, please excuse me. I am going to follow your guard's example and get some sleep." With that having been said, Sephiroth rose, and his face twisted into a snarl. 
The motion had strained his left shoulder, causing him to reflexively unsheath his own massive and fairly useless wing. He sighed with a look of resignation. 
"Damn." He muttered with irritation. Without another word, he strode off, his mass of black feathers dragging behind him along the floor, a stark contrast against his silvery-white braid, which swished behind him rather dramatically as he went.