What does it take to maintain your status as a bestselling author? Han Se Joo (Yoo Ah In) was a writer in his past life during the 1930s Japanese occupation of Korea. He has been reincarnated and is a bestselling author in modern day. But Se Joo is depressed and has writer’s block that keeps him from completing his next bestseller. Yoo Jin Oh (Go Kyung Pyo) is a talented ghostwriter who can bail Se Joo out of his predicament, but the mysterious man has a condition for his services that Se Joo may not be able to meet. Jeon Seol (Im Soo Jung) is a veterinarian and book lover who runs her own delivery service. She becomes an anti-fan of the overrated Se Joo. Can Se Joo produce another bestseller under such difficult circumstances?