Not sure it if is webtoon or manga can’t remember anymore but it’s about the step father and step son (just adopted). The step father is really kind to him but it is all just an act because he wants to kill the step son because he thinks/believes that the step son killed his real son. Also the step son admires his father (step father). It is kinda bl story
It’s soo good that it hurts. Im in love with this story it’s freaking good.