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 "...!!!!"
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This book will lean toward dark romance, but there will be no r@pe. This author doesn't like glorifying SA as romance.

[BL] Accidentally Becoming the Healer of the Deranged Archduke

The blue pills had worked like a charm, allowing Darius to freely revert to his true form.

The Archduke, now in his adult state, sat in a massive chair. An aura of dominance radiated from him, pressing against everyone in the room.

"Where is he?" His voice was calm, almost detached, but the tension in his jaw betrayed the quiet facade.

No one in the room dared to take his words lightly. How could they, when the very healer entrusted to their care had been abducted right under their noses?

"Did I not instruct you to protect him?"

This time, Darius' question was directed at Berry. The old man, though seasoned by years of service, felt a cold sweat trail down his back.

"I apologize for my negligence," Berry bowed his bald head. His long, gray beard brushed against his knees as he added, "I should have been more vigilant."

Berry had been handling the herbs as directed by Xion. He needed to give them to the neighbor's shop.

Return of a Wayward Child