C212 Catching the mantis with the cicada.

Hearing this, Feng Jiu laughed, "I don't know if I can live to ninety-nine, but Second Prince said that life is in exercise. I agree with him."

"There was once a doctor who invented the Five Bird Game to strengthen the body. It is the same as this life is in exercise." Sun Xiaoliu also agreed. She and Feng Jiu were both doctors, so they naturally understood this principle