“两名不同性格的保安每晚都会在大楼内反复巡逻。”谨慎和乐于助人的K先生经常希望合作伙伴b先生能尽其所能为他人服务，以提高他的业绩。虽然B先生跟着他的脚步走，但他心里充满了疑问。一天晚上，两个人像往常一样巡逻，但遇到了一个醉汉，他正抱着一对孙子。面对眼前的危机，两人决定改变自己的生活……

"A pair of security guards with different personalities will patrol the building repeatedly every night. The discreet and helpful Mr. K often hopes that partner Mr.B can do his utmost to serve others in order to improve his performance. Although Mr.B followed his steps, his heart was full of questions.One night, the two patrolled as usual, but met a drunkard who was holding a pair of grandsons. In the face of immediate crisis, the two made a decision to change their lives……"