The Hero's True Identity is the Villainess — I'll Protect the Protagonist (You) Even at the Cost of My Life —

# English Translation Since birth, Reina had been afflicted with a disease that caused occasional sharp pains in her right hand. Despite visiting doctors, there were no abnormalities found. Just as she was resigned to living her entire life dealing with this pain——on one particular day, she met Maria, the daughter of a lower-ranking family, and Reina became certain. "I was born to protect this child." It seems that whenever danger approaches Maria, who has a constitution close to death, Reina's arm throbs. A warning system, so to speak. Upon realizing this, Reina learned swordsmanship and martial arts, becoming a hidden "System"—a hero who secretly saves Maria. Several years later, both Reina and Maria are 16 years old. Since entering the academy, Maria faces even greater dangers. In order to hide that she is the "hero" protecting Maria, Reina begins to play the role of a villainous young lady. Thus began Reina's double life—a villain on the surface, a hero in secret. However, Maria also harbors a secret of her own——?