Seungcheol discovers a mysterious box of letters in his mother's vault, all addressed to him. When curiosity peaks his interest, he reads the letters, each one stirring a whirlwind of emotions. Who wrote these letters? Why did they never reach? How come his mother possess them? Who loved him so dearly yet stayed silent?

BOOK #4 He didn't walk into my life - he bled into it. Like smoke curling under locked doors, like rot blooming behind a smile. They say the Devil knocks. But Soonyoung never needed to. He found the cracks in me, the ones I sealed with silence and stitched with obedience, and whispered through them like a hymn - dark, low, addictive. He calls me little heart, like I'm something fragile he plans to keep broken. And I keep coming back, not because I'm brave - but because I've forgotten the taste of salvation. And damnation, when it wears his face, feels almost holy. ---- I never wanted heaven. Too clean. Too quiet. Give me the boy who flinches at kindness and claws at cruelty like it's the only language he knows. Give me Jihoon. My little heart with iron in his spine and rot tucked behind his ribs. He thinks he can outrun the dark - sweet thing hasn't realized I am the dark. And I've already wrapped my hands around his throat, not to hurt him - but to make sure he never leaves. He prays. I answer. Every time, in blood, in fire, in a love so sharp it cuts both ways.

What's worse than a blade at your throat or staring down your own death from a cliff? Getting married to Choi Seungcheol - the man even devils prefer to avoid. Yet here I stand, wrapped in silk I didn't pick, under chandeliers brighter than my will to live, listening to vows that feel more like contracts signed in blood. Everyone says this marriage will end a war. Cute. I say it's another battlefield - one I intend to walk across in heels and sarcasm. Because here I am, in a wedding hall dripping in roses and danger, smiling like I'm not actively planning how to make my new husband stop breathing.

Chaos and destruction. Two things Lee Seokmin despised more than anything. He thrived on control, on order, on things falling exactly into place. But everything unraveled the moment he laid eyes on him-his new husband. The brother of the man who was supposed to marry him. Joshua. "I know you hate pineapple, so I made sure to eat a lot. Imagine if we kissed right now... You might die," Joshua's voice was sweet, but the mischief in his eyes was undeniable as he leaned closer, his smirk dangerous. Seokmin's jaw tightened. No one could hear them, not their bickering, not their hate, and most importantly, not the way Seokmin's dead heart seemed to stir back to life. He hated chaos, but Joshua was chaos. And now, he was stuck with him. How was he supposed to navigate a life of perfect control with a husband who thrived on disorder? Would they ruin each other? Or was falling together inevitable?

Seungkwan never believed in love-especially not the kind that came with a contract. But when an arranged marriage with the cold and unreadable Vernon becomes the only way to secure his dream, he signs on the dotted line. A story about unexpected love, found family, and two people who were never supposed to belong to each other-until they did.