The Evil and Sane Demon Princess Saves the Sadistic Heroine Who Rips Out the Bones and Digs Out the Heart

When I got married, I cast a curse on myself. If my husband falls in love with someone else, I will gradually forget about him. When he chose to find a magic weapon for his junior sister, I forgot that we would fight against the beasts together and guard one side. When he chose to leave seclusion and take care of his sick junior sister, I forgot that we drank and talked all night long. When he chose to support his junior sister and accuse me, he became a complete stranger in my eyes.