Dress as a villain guardian (system)

Gu Xun traveled through time, and in addition to getting a portable system, he also had to inherit the inheritance of distant relatives and a girl with a very high IQ.There is no problem with inheritance, but the problem with girls is big.System: "This person will occupy a high position in the future and become a feared demon king." Gu Xun: "Okay, discipline yourself more, right? I understand." Later——in the dark, Gu Xun was crushed by a problem girl the wall. "just...