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

"Teacher, wait for me here. Don't go anywhere. And don't eat anything without me testing it first. I'll be back soon."

Xion hummed lightly. His gaze darted toward Allen's father who was also looking at him with wide eyes.

"Lord Xion!" The man's tone changed instantly. "I did not expect to see you here, my lord. How have you been?"

Xion was surprised by this shameless display.

Not once had this man asked about his own son's well-being. And yet, he spoke to him with such a sincere smile.

Xion merely nodded before turning back to Allen.

"Brother, you have to come back soon," he said while intentionally emphasizing the word brother with a bright, almost childish smile. One that perfectly mimicked a clingy person.

"I don't want to be by myself. And you know His Grace wouldn't like it if I complained to him."

The Beginning of It All