How To Survive As a Villain on the Verge of Death

Alright, I'll clarify:She was thinking the other mana was from the ML's mother, as she became a sacrifice - and went back in time - after being exposed to an explosion from a mana stone the ML's mother charged.
Prince, but introduced as a Princess for safety.
MC's body is cursed as f**k
3? who are those 3?-dad-mom-granpa-granma-unclewho?
it's a wasting chapter for a wasting time, and i wasted it happily