Bastard (WEBTOON) Vol. 2

Jin's father hides a terrible secret behind his smiling facade: Even though he plays the part of a morally upright CEO, he's a serial killer! To make matters worse, he's long forced Jin to serve as his accomplice, dragging the sickly, disabled boy into a mire of evil. But Jin isn't content to stay under his father's murderous thumb forever. When his high school crush winds up as his father's next target, Jin resolves to stand up to the demon that controls his life. An unexpected friendship with his former bully and a deepening bond with the girl he loves open Jin up to a whole new way of living, even as his father casts a deepening shadow across all their lives...

Volume 2 of the Bastard manga series by Carnby Kim.