Blood ( kdrama) ending

at first i didn't understand a thing either of what happened in the end but think i get it now !! okay we see at first the doctor evil aging in front of us !!! that means he is back as a HUMAN !!!!!! that means the lab doctor and his assistant made a vaccine out of the most decomposed blood they found of park ji sang !!! they found a cure !!! and of course since park ji sang is a very unique vampire he managed to stay alive !!! like they said !! " his blood is the one which is pumping his heart" !!! i find it a bit blurr but that's the conclusion i came up with !!! anyway this is a waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaay fiiiiiiiiiiiine kdrama !! ahn jae hyun did a good job in his career debut don't you think ? i'm gonna miss this kdrama veeeeeery much !!! koo hye sun did a pretty good job !! she's supposed to she's my favourite actress !!!! i love her !! this kdrama was something else !! totally and i'm shocked thsi has competely changed my point of vue about vamps !!!! this serie made me feel warm !!! warmth !!! not any kdrama can transfer that feeling and make you feel love !!! i should stop talking now !!! hhhh !! i hope they continue to make such heart-warming series in the future !!! good luck guys !! really loved it !! and loved you !!! thaaaaanks for lerting me feel these feeling !!!! break a leg !!