The interstellar ABO background combines the medical elements of "pheromone disorder" with the classic setting of "Marriage first, love later" to tell a story of sadomasochism that begins with conspiracy, sinks into sincerity, and finally leads to redemption. The main CP is the rational Alpha Shou who "watches himself sink soberly" vs the paranoid Enigma Gong who is "crazy and gentle only for one person". The three pairs of sub-CPs respectively cover the three classic modes of "reunion after breaking the mirror", "substitute white moonlight" and "iceberg covering the heat", forming a complete matrix of emotional lines.