Lan Xichen would laugh at people if they were to say A-Yuan is not as intimidating as his father. 'Ah.. if they could only see him when he's sleepy..' Lan Xichen sighs, how he managed to survive his nephew's glares is something indeed. or: Involves a sleepy baby, who glares, and people being surprised at A-Yuan's attitude while he's sleepy. (story not mine)