Anispia, who repelled the dragon that attacked the kingdom alongside the genius noble lady Yuphilia. However, the commotion over the broken engagement is far from over. Anis, who accompanied the king's audience with Lady Rainy, who holds the key to it all, realizes the truth that she is a "vampire." Yet, this is just the beginning of a grand conspiracy that will shake the royal palace! "Sister, let's settle who is worthy of being king right here!" "Argard. You have no right to call yourself a king." Anis's younger brother Argard, the one who caused all the trouble. The sister, who had no choice but to oppose him for the sake of the country, finally clashes with her brother! A lovely yuri fantasy in the royal palace featuring these two, Act 2!