Lin Chen, a modern office worker, travels to the Jing'an Marquis Mansion in Dajing Dynasty due to an accidental car accident. He becomes a frail and cowardly third son who is marginalized in the manor. In order to survive stably in the complex power cracks of the Hou Mansion, he deliberately hid his weak ability to travel through secrets and awakenings, pretending to be the original owner and living a low-key life.
By chance, he discovered that the personal jade pendant was the key to traveling between the two worlds, allowing him to travel freely between the modern and parallel ancient worlds. With this special ability, Lin Chen started his career as a "Two Realms Trouble" - bringing back high-yield seeds, medical supplies, glass products and other scarce materials from modern times, solving survival crises, accumulating wealth and connections in ancient times; and bringing ancient precious medicinal materials, silk porcelain, etc. Into modern times for realization, laying a solid foundation for his two worlds career.
In the process, he needs to deal with the difficulties of his aunt Liu and the calculations of his second brother Lin Hao. He also has to carefully guard the secret of traveling between the two realms, and find a balance between hiding his strength and gradually emerging. In the end, he grows from the humble third son of the Hou family to a legendary figure who can cross the two realms and protect the balance between the two realms.
