You currently live in a country where silver hair was seen as a sign of rebellion so the current ruler's father had all people with silver hair executed.

When you were younger, your mom dyed your hair black but you were too young to understand why she did so. Your mom would explain.

"Only with this hair colour, you can go out and play..."

Years passed and you're currently a young adult. You were at an isolated lake. Taking off your hair tie, you dipped your hair into the water and you slowly saw your hair turned silver like a shimmer woven from moonlight and mist. What you didn't know was that this scene was seen by the current ruler, Lucien also known as "Lian Yexuan" (怜夜玄). Though he didn't look exactly mad. He looked like he was memorized by it.