No, What About My System?

[Single female protagonist] [Daily life] [No knife] Traveling through a post-fantasy world? System, grandpa, powerful and rich dad, where are you? Could it be that my name is Xiao Yan? "Hey, what's my name?" Passers-by: "You must be sick!" No, there is no system, no dad, no grandpa. I am a time travel machine. "Ding Ding, the system is here to report!" "Ugh, who are you!" "Where did the monster come from!" "Master, save me!!!"