In the chaotic era of the Republic of China, Guan He, the female boss of Nanhua Firm, secretly manages the intelligence organization Night Navigation Pavilion. Having mistakenly ingested the Nirvana Powder in her early years, she gained eternal youth and an unchanging appearance. She adopted two orphans, one overt and one covert, both loyal servants. Until Huo Yanzhou appeared, publicly piercing her dual identity. Wharf cargo interception, antique street shadow warfare, empty tomb thrills, and the Duel of the Return to Ruins Society, she plans every step, while he presses closer at every turn. Guan He borrows his momentum to expand her influence and dominate the antique chess game. What is eternal youth? What she wants is the entire chessboard!