Scarlett, a kind‑hearted and resilient delivery rider, enters a flash marriage with Ethan, the CEO of Imperial Group who is disguised as a poor young man, in order to hold onto her late mother’s keepsakes. As they live together after marriage, feelings gradually blossom between them. Behind the scenes, Ethan helps her resolve workplace crises. When his true identity as a corporate president comes to light, his former fiancée teams up with their bitter rival to set her up. Amid life‑threatening danger, Scarlett recognizes her true feelings, and the two finally rebuild their trust hand‑in‑hand.