I tried it myself at home—children between cousins are supposed to be compatible. What on earth is going on here? Could this all just be coincidence?
Before long, a guard returned to report to the Emperor: "Your Majesty, Jin Wei has fled."
"Fled?" The Emperor shot to his feet, visibly agitated.
Jin Wei came today too. He had issued strict orders that no one could leave Prince Jin Residence today, and had already coordinated with Jin Zijin to assign people to watch over everyone. How could Jin Wei have managed to escape?
"Your Majesty, before the banquet began, Jin Wei claimed he was unwell, so he…" The guard trailed off, but the Emperor understood the implication.
He had fled long ago, taking advantage of the time when guests were coming and going, before proper defenses were set up.