Did This Child Develop a Mutation?

Brother Monkey's expression was like an open book. Yan Hongyu choked. He felt angry, amused, and shocked all at the same time. Did this child develop a mutation?

'Other than Gongyu Hao, does no one else in the Yan family have the talent to learn martial arts? Oh right, I also have talent in martial arts.' Yan Hongyu thought.

After Yan Hongyu entered the city, he learned some martial arts from a guard of the family that he used to work for. He was born with great strength and had some talent in martial arts. However, he had only started learning martial arts at thirteen, just shy of the prime age to learn martial arts. Although he was considered good at martial arts among ordinary people, he could not compare to real martial artists. 

He was just another regular martial artist roaming the streets at this current ability. Although his skills were only for protection, he only relied on his intelligence when he worked at the dock.