Spilled Blood

One day, Yunhyeok has a younger brother who suffers from an incurable disease. Yoonhyuk volunteers to be Yoon-jae’s guardian and lovingly raises him for 15 years. However, as Yoon-jae grows up, he tries to break away from the sibling line, and Yoon-hyuk sees his younger brother masturbating on the CCTV set up to monitor Yoon-jae….Original Webtoon