Namjureul Jungnyeobogetseumnida

Kwon Jinha is a fit and healthy kindergarten teacher until she gets too obsessed with a silly web novel. Gradually, she starts feeling the aches and pains of the main character, the maid Elby Tindale, until she suddenly enters the novel as Elby! Facing a toxic secret relationship with the male lead Flynn Raiders, Jinha's version of the novel is a virtual reality game in which her mission is to figure out how to kill Flynn... or be forever stuck with this obsessive creep!

(Source: Tapas)