Evelyn, heir to the Holy Healing Guild, is reborn on the day her mother falls critically ill. Faced with her adopted sister Lydia’s plot to copy medicinal formulas using the Mirror Grimoire, she no longer craves familial favor. Instead, she sets layered traps with half formulas, fake prescriptions disguised as nursery rhymes, ciphered recipes and balanced-water tricks to force Lydia into revealing her true colors. When a plague strikes the royal city, her family once again tries to send her to the palace to die. Yet she saves common folk with low-cost herbs. At last, she presents the Sacred Silver Healing Seal, severs her toxic family bonds, and reclaims her medical skills, reputation and life.