The turning point is the death of the 10th Prince. So holds his dying brother, covered in blood, and looks up at Hae Soo. In her eyes, he doesn’t see love. He sees fear. The same fear he saw when he was a masked child. The Ending That Broke Us All We all remember the final montage. Hae Soo dies in another timeline, alone, her last vision a painting of Wang So she asked for. Meanwhile, So rules Goryeo—brilliantly, brutally, and completely hollow.
To secure his reign, he must kill his enemies—many of whom are his own brothers. He becomes the blood-soaked king everyone always predicted he would be. The tragedy is that he does it to protect Soo , but the violence pushes her away. scarlet heart ryeo wang so
But the mask is a metaphor. So wears it to protect himself from a family that sees him as a curse. His mother hates him. His brothers mock him. His father, the King, ignores him. So learns one brutal lesson early: The turning point is the death of the 10th Prince
He doesn’t get a redemption arc. He doesn’t get a happy ending. He gets the throne and an eternity of regret. Wang So resonates because he is not a villain, and he is not a hero. He is a product of neglect. Every cruel thing he does comes from a wound. And every tender thing he does comes from a desperate, starved need to be loved. He sees fear
The rain scene. The “I love you” whisper in the barn. The way he looks at her like she hung the moon. This is what makes his fall so agonizing. He didn't change for power. He changed for love . When So finally becomes King Gwangjong, it should be a triumph. He has the throne. He has the girl (sort of). But history (and the drama) shows us that the crown is a poison chalice.
When Hae Soo (IU) first sees him, she’s terrified. But she’s the only one who asks to see under the mask. That moment—when she gently touches his scar and says, “It doesn’t make you a monster”—is the key that unlocks his entire soul. Lee Joon-gi’s performance is a masterclass in restraint. Wang So doesn’t emote loudly. He watches. He waits. He clenches his jaw until it looks like it might crack.