I Have a Super Entertainment System

The protagonist travels to a parallel world with a super entertainment system. Xu Jie: System system, aren't you an entertainment system? Why are there martial arts skill books? System: I am afraid that you will be beaten to death, so I want you to read some martial arts books. Is there any problem? Xu Jie: Then why are there sports skill books? System: I am afraid that you may have kidney deficiency, so I want you to exercise more. Is there any problem? Xu Jie: Can this gambling skill book really tell the truth? System: Occasional entertainment is necessary! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.