The Only Heir Prince Killed the Pregnant Nanny

She climbed into my bed and wanted to give birth to my child. When I refused, she became angry and said, "A bastard deserves to be a prince? You will regret it!" I am my father's only son, but I am not his biological child. She claimed that she wanted to give birth to a real dragon son for my father who was infertile at all. Later, she successfully gained the favor of her father, became pregnant, and was promoted to a noble concubine. When the spring breeze was triumphant, she encouraged my father to demote me as a eunuch to serve their future dragon son. But she didn't know that none of the children she gave birth to would survive...