Liria, who became a master of survival skills to thrive as the emperor’s illegitimate child. She grew up as a beloved princess to everyone, but when she learned that her marriage partner would be the grandfatherly king of another country, This marriage, as a determination she would rather die than go through, She boldly proposes to Evan Blake, an emotionless duke. Superficially in an antagonistic relationship with the emperor, Evan, considering her proposal pathetic, speaks harsh words to hurt Liria. “Do you suck well?” ‘Is he asking if I’m good at… sucking?’ Liria, inexperienced in men’s matters, interprets it differently. “I’m exceptionally good at it. Would you like me to do it right now?” “…Yes?” “Blake, do you know what? I can feel a wall from you.” “Yes, yes?” “Perfect.” In an attempt to embarrass the princess, Evan ends up flustering himself. What will become of the relationship between the two? Married to a Sympathetic Pe*vert Duke.