MTL - School Flower Versatile Security Guard - Chapter 43 ungrateful

She was originally a puppet of her family. Pursued by the police for being a business spy and hitman, she was betrayed and fell into the sea.

When she opened her eyes again, she had turned into an ordinary high school student. Because of a disgraceful birth, she had been crowded out by her relatives. Because of inferiority complex and antisocial behavior, she was bullied by her classmates.

But now she is no longer someone who acts timid. Cheat her, and she will break your bones.

She possesses formidable Jade pupils capable of seeing through walls. Other people have difficulty breaking through jade, their sight for antiques is based on gambles, but she only needs a look.

An undertaking begins as she creates legends in the world of business.

Once upon a time, they laughed at her poor and destitute state. Now looking at her net worth of 10 billion, it can’t be explained.

To the relatives that come to hug her thighs, she must apologize: “We broke off relations long ago, so get lost!”

In the Heart’s Kingdom, a kingdom where vampires reign and humans were nothing but livestock, Lilou, a peasant, found herself being preyed upon by the worst maniacal vampire of his kind. However, as terrifying as what he addressed her as his ‘reserved meal’, this vampire also called her his bride!

Except:

My eyes brood with fear, gazing at the still-beating heart in his hand. “My Lord, pardon me but… is this the bloody proof you promised to show me?” I asked, my voice shook as I gulped down whilst struggling my trembling knees from giving away.

“Mhm… do you now believe I’m good at capturing hearts?” The silver-haired man, bearing those menacing pair of deep crimson eyes stared proudly at me after a nod. I gasped when he clenched his hand and squeezed the fresh heart to smithereen.

“Yes, milord. You’re good at it, literally.” I’m mortified, watching the pieces of the heart fall as he approached. His every step made me take a step back until my back reached a solid pillar.

“Huh,” Samael chuckled briefly, stopping in front of me. His long, pointy nails that were covered with blood traced my elbow down to my hand. Gently, he clipped my forefinger in between his, guiding it before his lips. “Did I pass your test, though?” He asked, the sharp tip of his nail played over the tip of my finger.

I stared at his penetrating gaze as I reluctantly answered, “Barely.”

He smirked, nodding in satisfaction before he pressed his nail on the tip of my forefinger that was quick to produce a drop of blood. “Such sweet aroma.” He whispered, placing my bleeding finger in his mouth and licked it with passion.

His menacing gaze never left mine as he consumed a bit of my blood. “Does that mean you’re accepting my invitation?” Keeping my finger in between his fangs, Samael inquired.

I bit my lower lip unconsciously, my heart within my chest drummed as my back broke into sweats. “But… I’m just…” I paused, hoping my answer would put an end to this. “… I’m just a human.”

Samael clicked his tongue, displeased at my response as he let my finger go. “No,” He whispered.

My entire body stiffened when he bent over, caressing my shoulder up to my neck by the apex of his nose, as his hot breaths prickled my skin.

“You're not just a mere human... you are my human.” He stressed before I sensed his lips part and the tip of his fangs against my skin.

A tree of 10,000 flowers, the world is the door.
The spells change a lot, but the hearts of the people are unchanged.

- Description from Uukanshu translation

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.