@twenty4carats
Firstly let me fix Nina's age. She is 15 right now in the story. And yes the king is 19.
But in Korea for being adult, you need to be 20 years old in Korean age, which means 19 in international aging system. So, she isn't considered as an adult yet.
And if you wonder about when...
Why do everyone say "Pedo" in the comments?
Just a reminder:
Nina is 15
The king is 19
They have 4 years age gap. Not more.
And there won't be
And I don't see any sexual affection in this chapter. It was more like protector-parenting to me.