The System Is Advanced Twenty Years, and the Empress Becomes a Maid

We are in another world, we are sixteen this year, and the counterattack system is 20 years old? [At the age of 36, your father is jealous of the emperor...] [When your father, whom you have not seen for twenty years, is dying, he just wants to see you once, and asks the host to fulfill your father's wish. [Reward: Great Return Pill. Xiao Chen, who was confused after having just traveled through time, opened the door and saw Xiao Zhan, King of Zhenbei, who was practicing martial arts in the yard. The next second, Zhenbei King Xiao Zhan, who had been fighting for many years and made great achievements for Daqian, making countless neighboring countries frightened, raised his eyes and looked at Xiao Chen. "Why is it so early today?" Huh? Xiao Chen was stunned for a long time. Mission... Completed? ... [The system task is triggered again. Please let your old father, whom you have not seen for many years, know about your changes and gain his approval. [Task reward: Summoning card for famous ancient Chinese generals. Xiao Chen only sparred with Xiao Zhan for ten seconds, but he still lost despite his unlimited efforts. Xiao Chen, who thought the task could not be completed, blinked. Mission... Completed again? ... "Subordinate Huo Qubing pays homage to the Lord." ...