I Became the Tyrant's Chambermaid

When Lee Chaerin kicks the bucket, she's whisked into a dark fantasy novel as Rose Estania, a chambermaid at the mercy of the tyrant crown prince, Kalix Forsman. Armed with nothing but her real-world hotelier skills and a diary from the real Rose full of cryptic hints but no escape route, she's forced to navigate a dangerous world teeming with Kalix's enemies. Can she keep his wrath in check, evade death, and find her way back to reality before it's too late? --- Your Highness- That is absurd!! "Your Highness, did you just cough-!!!" I'm doomed! I've been transmigrated to another world! As an extra chambermaid from a 19+ impoverished novel from the early 2000s! For now, I'm trying my best not to upset the male lead's temper so I can survive and return home... "Your Highness! Please hav...