• Denying the "Father" Status: Woo Jinpil has constantly used the excuse of "I am your biological father, I made you, so I own you" to justify his horrific abuse, control, and manipulation. By stating this, Jinhyeong is actively stripping away Jinpil's ultimate defense.
• Blood Doesn't Equal Obligation: He is emphasizing that the mere accident of sharing DNA ("the biological tie") gives Jinpil absolutely zero right to claim him as a son, command his life, or demand his loyalty.
• Complete Emotional Severance: He is choosing to view Jinpil as a complete stranger and an abuser—effectively declaring that as far as he is concerned, they have no real relationship or tie left.

ch89 wait so jinhyeong is an adopted son of woo jinpil is it?