The emperor secretly deployed a secret service organization - the Left Guards - around the palace. They lived near the palace like dignitaries and nobles. In case of emergency, they would set out to rescue. This special organization is ruled and managed by Yue Fei; but here in the 21st century, Yue Fei and Xiu Jie, who were abandoned by their parents at home, had just passed the high school entrance examination. They originally planned to go out and relax, but when Xiu Jie went to the toilet at Yue Fei's house, he was mysteriously sucked into the toilet and fell on the table of Yue Fei and others who were discussing the battle plan. He, Yue Fei, met Yue Fei... A peerless love; he, Xiu Jie, came to this world with Yue Fei and met someone who loved him deeply; a pair of twins, contrary to common sense; an awkward feeling met a different twisting gong... What happened to them...?