The Young Lady's Heart-Stealing Bodyguard

He is an immortal king. To fulfill a long-held wish, he returns in high spirits, willing to stay by her side and keep her safe.

For her, he defies the whole world, honoring a single promise. When he turns back, he sings as he treads through blood!

For her, he brings down kingdoms, all for the sake of one beauty's anger. In the storm of bloodshed, the imperial city is stained red!