Should I Write You a Love Letter Instead?

Summary

"......Elliot Brown. I'll have him serve as my bed attendant." 'Employee of the Month' Lim Sung-sik, who has worked in all sorts of service jobs, has possessed as Elliott, the villainous supporting character and author inside a tragic BL novel. In the original story, all the characters die at the hands of the original story's top, Arjen, but Elliot decides to hide his past as a writer and live quietly to avoid ghostwriting the love letters that started the tragedy. However, due to unavoidable circumstances (he has to take care of a cat), he becomes Arjen's bed attendant... To make matters worse, the original bottom's identity as a writer is discovered and he ends up ghostwriting letters to Arjen. But this Grand Duke seems quite different from the one from the original story...? Can Elliot ghostwrite the letters properly and avoid a dead ending?