"What if I don't wanna be the bad guy, what if I don't want to end humanity" " then you will be ended along with humanity"

After the disappearance of Ruby Rose, Team WBY was unable to save Remnant. When they discovered what had happened to her, they were filled with heartbreak and sadness, and decided to change history for the better by sending a terminator to the past to save her from her horrible fate. In the process, a powerful bond is formed between human and machine.

The T-750 is one of the first terminators, built out of a human corpse, project was later deemed a failure and set to be destroyed but it escaped into another time and place and adventure awaits

Updated to a censored cursing story so that will be ok. In the future atlas made a defense chipped named skynet until it began to go rogue and destroy atlas. Skynet was using a dust type of explosion and uses it on the three kingdoms destroy human, grimm, and Faunus life. Over years skynet found out that grimm population is increasing and human and Faunus is still alive so they made machines with the mind to kill anything. The remnants of the huntress teams became leaders and ruby rose was the leader until she died. Yang became the resistance leader with Blake and Weiss until skynet made a time machine and send one back to time. Blake and Weiss decide to capture one of them to send them back to time and saved everyone. When Blake and weiss captures the terminator named y/n he then went back to time far. Now y/n had a mission to secure everyone who is important for the future.