Set in 1980s Kowloon Walled City, where triads run rampant, and corruption infects the police force, He Chu San dreams of studying hard and escaping the chaos. His plans collapse when Xia Liu Yi, a triad deputy leader, forcibly pulls him into a criminal scheme. As conspiracies unfold and power struggles intensify, the two men move from reluctant allies to partners in revenge. He Chu San, a calculating yet deeply devoted financial strategist, and Xia Liu Yi, a fierce but unexpectedly tender enforcer, find themselves fighting side by side. In a lawless city balanced between black and white, love becomes their most dangerous gamble. Can they carve out a path to survival for each other?(Source: DramaWiki; edited by Me Myself And I at MyDramaList)~~ Adapted from the web novel "Chusan’s Liuyi Children’s Day" (初三的六一儿童节) by She Xie Dian Dian (蛇蝎点点). ~~Co-production with Thailand.