Reincarnated in a Game as a Minor Character and Became the Deamon Lord’s Personal Maid ReinMaid

I died pretty stupidly and now, I was reincarnated as a background character in a game I was ABOUT to play before dying. Worst part? The village I'm living in is gonna be sieged by the Deamons' Lord...
When he arrived, I had a deal with him and became his personal maid... Wait... WHAT??

***** everything now! (╯°□°)╯︵ ┻━┻

(the author will probably change the writing of the synopsis at one point since it's pretty 'drafty' right now XD)