I Played the Substitute Too Well: Volume I

Karina never expected to find herself inside the pages of a novel—especially as a villainess destined for ruin.

But that won’t keep her down!

Taking charge of her new life as an S-class guide, she strikes a risky bargain with Duke Robert Apharantes: her blood to heal his powerful but tormented son, Hedonia, in exchange for security and a mansion on a private island to call her own.

Determined not to overstep her precarious role, Karina sets out to help Hedonia, whose painful awakening could ei...