C648 Crown prince

After sending the court ladies away, Empress Dowager Chen pulled Yu Heng over with a solemn expression. "Heng`er, you have to listen to whatever I say next. Don't be willful."

"Royal Grandmother, please speak."

Empress Dowager Chen pointed at the vermilion threshold above her knees and said word by word, "Once you leave this door, you're not allowed to remember the words just now