It seemed like a contract marriage where everyone got what they wanted, but Wen Yiheng accidentally revealed the secret of his former dynasty's longevity in order to save his wife's life. When the cold technological thinking collides with the mysterious ancient inheritance, the two work together in conspiracy and calculation to break the situation, and step by step closer to each other's sincerity.
On the road to eternal life, what they have to fight for is never to live the same life as heaven, but to spend every day and night together in this life.
