She is a scheming, naughty, and arrogant rich lady.
And he was the eldest son of the Dark Night Empire, who was only one month younger than her.
He loved her dearly, he dealt with the consequences when she caused trouble, he worried about her when she was sick, he accompanied her when she was sad, and he was happy when she was happy.
Excerpt 1, "There are no rules, you should call me sister."
"Who stipulated it?"
"God"
"I am God"
"..." A certain woman was speechless. Did she praise herself so much?