Dreamwalker: Reign of the Heavenly Sovereign! - Chapter 35 (r18)

Jiang Feng considered himself just an ordinary delivery guy.Until one day, a young man suddenly appeared, carefully grabbing his hand and saying, “Judge, Judge, I am the King of Hell.”“…” Jiang Feng replied, “King of Hell, King of Hell, I am also the King of Hell.”The King of Hell turned around, tearfully addressing the Black and White Impermanence, “I knew it, he’s been wanting to usurp my position for a long time!”—-“Those people all say that Heaven has the virtue of cherishing life, and tell me not to dwell on it anymore. Is it true that after people die, they don’t even have the right to appeal for justice?”“They look at life and death, I only judge right and wrong.”“Who are you?”—”The Judge.”

After rebirth, she, who used to be a top international spy, becomes the eldest daughter of the Fengs, a fat girl who is ugly and foolish in the eyes of the ordinary people.
Mastering Royal 18 Saber Moves and Purgatory 9 Palms, she rose to fame with the martial arts of Demon Cook.
Upon an imperial edict, she was ennobled as the wife of Lord Cen, and then suffered various intrigues and plots…
She proved herself to be a real overmatch and a true genius to the world…

A fluffy, sweet modern GL story about a mature older women and a cute university student.