Though a lady from a wealthy family, Louisa is not happy. Set up by her stepmother and her sister, she mistakenly comes on to this charming man Bruce who has an untold secret that he is only interested in women of a certain blood type. Upon seeing Louisa for the first time, he instantly knows she is the one he has been looking for. He spends a crazy night with her and is determined to love her only in his rest life, but only to find that she has gone missing the next morning. It is years later when they meet again. She already has a lovely boy, the boy of Bruce’s. He swears he will never let her go this time. Surrounded by bundles of handsome men from Bruce’s family who suffer from the same problem as Bruce, Louisa feels upset, but her clever boy promises to protect her.