After Being Deposed, She Burst into Tears: the Ruthless Emperor Was Ruined

After being transformed into a desolate palace, the system asked me to collect the Seven Tears of the Dog Emperor and return to modern times. I pretended to be crazy and acted foolishly, teasing and training him. Every time he shed a tear, the country fell an inch. When the country was about to collapse, I realized that this was not a mission to return to modern times at all, but the system was trying to kill him! Should I protect him or destroy him?