Kuroitsuki

Xion Aijawa thought his life was finally coming together. That is, until he tried saving a cat stuck in a tree, fell into a pit, and... died

In his disoriented sate of "Freshly dead" the silly Xion accepted a strange request and ended up transmigrating into the world full of dungeons and Mana. 

He became illegitimate child of Marquis family hated by his three siblings.

According to the memory of the original owner of the body, Xion only had a month to live.

So, taking the cover of the banquet, Xion ran away. Aided by a mysterious Mall System, he makes his way to the distant borderlands, hoping to put his past behind him. 

But fate has other plans-. Xion ends up saving Darius Rael Darkhelm, the feared Archduke of the North, notorious for his ruthless and deranged nature. 

The silly Xion tried to run away but...

 Xion's heart thumped loudly as Darius effortlessly pinned his wrists using only one hand.

"I've heard you tried to run away."

Darius gently caressed Xion's pale cheek, "That must be a lie... After all, I've given you things even the royal family can't have. Isn't that right, my dear healer?" 

Xion gulped when Darius's thumb brushed his lower lip as a chilling smirk remained on his handsome face.

 "I-I think I should leave, Your Grace. I've overstayed my welcome..."

The room grew cold, and struggling Xion shivered.

 Darius's green eyes dimmed before lighting up with a dangerous glint. 

Xion felt a pit growing in his stomach when he saw the deranged archduke smile. Darius never smiled. And whenever he did, it only meant trouble.

"You're right," Darius said calmly. "So, let's get married."

Xion "...!!!!"

[BL] Accidentally Becoming the Healer of the Deranged Archduke

The metallic scent of blood tainted the air. The floor, too, was painted with crimson, dyeing the fragments of shattered stone and broken wood scattered around the ruined corridor.

Xion blearily blinked his eyes slowly. For a moment, he thought it was all a dream. A terrible nightmare that would go away if he just held on a little longer. Just as he always did.

However, the blood trickling down his chest was real. The throbbing pain was real. And so were those footsteps inching closer to him.

Darius did not even spare a glance at him.

All the attention of those sharp green eyes was taken away by Klein, who stood there stiffly.

His arm, which was about to snap back into place, was still hanging in the air. Only then did Xion realize it. Darius had used the same spell as Klein.

The vampire who had been so smug just a moment ago now had his eyes wide open.

Lost Sunshine