Chi Sumu's biggest hobby is feeding stray dogs and doing housework. In a sudden "Sleeping Beauty Syndrome" incident, he got to know the grumpy and arrogant "Lone Wolf" Gu Xue. Su Mu, who was in line with the kindness of the doctor, was fooled by Gu Xue into a temporary "Whale Falling" member to steal the vaccine. Only after fighting the five scum, he was trained by Gu Xue to become an omnipotent agent. After joining the organization, Su Mu knew that " With the fetters and mission of "Sentinel and Guide", Su Mu also gradually evolved from his first acquaintance and admiration for Gu Xue to mutual attachment.