Yang Chen, who became a guest of Hua'er and the Young Man, actually obtained countless systems.
Tigers, lions and elephants are all his pets because he has the strongest animal training system in history.
He is good at singing, acting, and filming because he has the most powerful entertainment system in history.
Female stars, strong women, special forces, and goddesses of all kinds come to visit him because he has the most powerful hidden rule system in history.
The heroines in martial arts, animation, mythology, and prehistoric movies have all become his women because he has the most powerful wife-buying system in history.
You can upgrade by being slapped in the face, you can upgrade by eating, you can upgrade by sleeping, you can upgrade by sleeping with women, you can upgrade by standing still... Just because he has countless systems.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.