What does it take to maintain one’s status as a best-selling author? In his past life, Han Se Joo (Yoo Ah In) was a writer who lived during the Japanese occupation of Korea. He has now been reincarnated and is a best-selling author. However, Se Joo is depressed and writer’s block is preventing him from completing his new work. Yoo Jin Oh (Go Kyung Pyo) is a talented ghostwriter who could help Se Joo out of his crisis, but to do so he has a condition that Se Joo may not be able to fulfil. Jeon Seol (Im Soo Jung) is a vet who loves reading and becomes an anti-fan of the overrated Se Joo. Will Se Joo manage to produce a new bestseller in such a complicated situation?