黒竜陛下の政略花嫁 魔女ですが、助けた竜に嫁入りさせられそうです raw 第01巻 [Kuro Ryu Heika No Seiryaku Hanayome Majodesuga Tasuketa Ryu Ni Yome Iri Saserare Sodesu vol 01]

Olivia is a witch who uses singing to perform magic. She lost her voice as a child, saving a wounded black dragon, and has since lived with her sister, a genius witch. One day, they are invited to go to the dragon kingdom, because the dragon that Olivia saved has become the king, Libert, and wants to thank his savior.

There, they are faced with a dispute between the king, who does not want to get married, and his advisors, who want a strong witch as his bride. For some reason, Libert starts visiting Olivia frequently, and tells her she can't leave. What does he hide in his heart? And what's the secret behind Olivia's voice?