Ur mom

I’m looking for a Korean bl. It’s kind of historical/martial arts themed. The mc was given to his master by his family when he was young to learn martial arts, because the mcs father always wanted to have someone who knew martial arts or smth. The mc was in love with his master since young, and as he grew older I think the master realized?? But they end up sleeping together and the ml (master) drinks the mcs blood??? The ml turns out to be the clan leader of some vampire kinda clan and the mc some kind of soulmate that can give birth to the mls kid. The mc finds out that everything he knew about the master is fake and runs away. Mc gets caught and some other stuff happens and mc runs away again while heavily pregnant. They live happily ever after or something I think but yeah

It’s a bl/yaoi and the mc is the disciple of the ml. The mc grows up with the ml in the forest. At the end it’s revealed that the ml is kinda a vampire? Who drinks the blood at like full moons or something . The mc gets pregnant at the end.