A terminally ill girl is given one wish: be reborn as anyone she wants. She accidentally picks Raina Rubellite, the Level 999 final boss villain of an otome game, instead of the heroine. Cast out to the freezing north, she has overwhelming dark magic she did not ask for and capture targets from the game keep showing up uninvited. Written by SANSOBEE, adapted by Hangaga, illustrated by LEE JAE-I. Korean manhwa. Complete at 100 chapters.

Read I Became a Level 999 Demon Queen manhwa in English, fully completed. Also known as: 레벨 999 흑막 공녀가 되었다 · Rebel 999 Heungmak Gongnyeoga Doeeotda · I Became the Level 999 Mastermind Demon King · レベル999黒幕公女になりました