Black Lotus heroine + White and black male protagonist + twins + high IQ
"Double Life Shura Field × Double-sided Chess Player Game"
When black lotus hits white cut black:
She smiled and accepted the prince's betrothal gift, then turned around and cast the East Palace Treasury into three thousand arrowheads;
He was in charge of Zhu Bi, the Superintendent of Ceremonies, but he used her maiden name on Sin Ji Zhao;
During the chess game in the ancestral hall, she pushed him a glass of dove wine: "Cooperation, where is Eunuch Shen's sincerity?"
He swallowed the poisoned wine and held her lifeline with his backhand: "The 70,000 dead souls of the Zhenbei Army are watching the empress fall into disgrace."