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In love with the most devilish, cruel demon on earth, Y/n, who was a hashira at the time was in quite a pickle.

Blinded by love and promised of a 'true love', she innocently falls into his chess piece and betrays the family and friends she made in the demon slayer corps.

At the end, Y/n, who craved for revenge from his lies, uncovers her secret and resets.