I'm Not the Saintess!

[In the world of Tersia, the Gods send seven trials to test humanity, unleashing monsters, dungeons, and dark beasts born from black mana. The Hero, driven to madness after killing the woman he loved—who was revealed as a demon’s puppet—falls into despair.] - Heroes of Cartea.

Emilia, a veteran gamer, finds herself transmigrated into Heroes of Cartea, inhabiting a noble at the Academy, as one of 13 Saintess candidates. But she hides a secret, this body she possessed actually the reincarnation of an immortal sage, guiding the heroes with cryptic clues. Each time she reveals the future, she grows weaker, coughing blood, but never fatally. In every times she played the game, this woman will die!

Unknown to most, the female lead, the demon puppet, is her adopted sister. And while Emilia struggles against a system forcing her to act holy and evading red flag, she's not aware of this problem arises. The Male lead is getting weirder and weirder...

One day, the blackened male protagonist—broken and desperate—falls to his knees, clinging to her. “Please, Emilia... don’t die for your kindness. I’ll destroy everything for you—humans, all of it. Just don’t leave me.”