The System Is a Mess, Can It Still Be Upgraded?

After the girl who claimed to be the system appeared, Zhang Zizai sighed: "Technology has advanced so much, and the system has a human form, is it still a beautiful girl?" I thought I was getting a big deal, but I found out that I had been cheated. This is a rookie who is just idle and waiting to die! Zhang Zizai was desperate until he tricked a time traveler to death. Congratulations to the binder for obtaining the god-level sign-in system ability seed! Congratulations to the bound person for obtaining the law technique: One Sword to Destroy Gods! Congratulations to the binder for obtaining the Taoist weapon: the Sky-Breaking Little Sword! By defeating the time traveler, the system can obtain other system ability seeds and system rewards. By upgrading the system, you can obtain all the abilities of other systems! Later, things got weirder and weirder. "What? Can you gain experience upgrades by slapping a time traveler in the face?" "Forcing the time traveler to become my younger brother can also gain experience and upgrade?" "Can you still get experience upgrades by fooling senior sister?" "What if I accidentally bumped into my senior sister? Or can I gain experience and upgrade?" "Please be a system!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.