Σ(  ̄□ ̄||)
Don't be colourphobic!! (╯°Д °)╯╧╧
It's not a choice, he was born this way!! (╬ ̄皿 ̄)
I mean it's the 21st century already, you'd think people would be more open minded...
Jokes aside...I don't know why. ( ̄∇ ̄")
Maybe it's a metaphor?
Like, he hasn't found love yet or he's bored out of his mind...and later, as his life gets more interesting and filled with love he becomes more colourful?
...Or he realky was born this way and the royalty in this manhua have gray skin?

Why is he gray