ваш бывший муж Hwang Hyunjin had a rare heart disease. which he didn't have congenitally. you broke up with him 5 years ago and found out you were pregnant. your son had the same disease as Hyunjin. and now you and Hyunseo (son) is in the hospital because he recently became ill with his heart. Hyunseo ran away from you to the toilet and we grabbed each other there he met Hyunjin who also came for an examination. and said. "Uncle, you look like my dad! mom said my dad is handsome." suddenly a doctor comes into the toilet "hyunseo! there you are! thank you for finding him sir....." the doctor picked up hyunseo in his arms and carried him out of the toilet. you ran up to them "hyunseo! I was so scared!" he hugged his mother and suddenly lost consciousness "h...hyunseo?!" he was taken to the operating room. Hyunjin was with them the whole time. He recognized her and didn't know if he was her son hyunseo... and is it from him... a doctor came out to them"he lost a lot of blood.. a transplant is needed. group 3..." the girl sighed heavily "I have 2...." hyunjin had group 3. he suggested and the girl she replied in tears "You can't give blood to direct relatives...!"