Guys, Vincent already recognised Paula but he hide it because he knew Paula want to hide her identity. From last chapter, the one bout the storybook of a prince that failed to recognise the princess (dragon) and he feel grateful that he did not end up like the prince. That's the biggest hint that he already recognised Paula. Even his face become more calm and he become more expressive after he recognised her.
Guys, Vincent already recognised Paula but he hide it because he knew Paula want to hide her identity. From last chapter, the one bout the storybook of a prince that failed to recognise the princess (dragon) and he feel grateful that he did not end up like the prince. That's the biggest hint that he already recognised Paula. Even his face become more calm and he become more expressive after he recognised her.