Replying...
Intro. The male protagonist was reincarnated in a family in the magic world. When he grew up, he became a warrior. When he was 20 years old, he was captured by the vampire queen, and his body turned into a 143cm tall silver-haired girl. , the vampire queen learned that she had become a purebred vampire, and she had to be constantly sucked and played with by the vampire queen, and slowly educated her to become the next generation of vampire queen.

Lilith

@neko