Cold-blooded Undercover Master - Chapter 65

She is the daughter of an Alpha whose family had conquered the last demon wolf in Illyria.Esmeray is born into the prestigious Alpha family, known as the Montague. But after her father's untimely death, her life becomes a nightmare of abuse at the hands of her cruel stepmother and stepbrother, who torment her for lacking a wolf.Desperate for salvation, she dreams of a mate who would come and rescue her from the cruelty of her pack. When he finally arrived, her hopes were shattered, for he had only come to reject her.Her only connection to her family's proud heritage is her striking blue hair, a sacred legacy from her ancestors. But in a desperate bid for freedom, Esmeray cuts her hair to escape being sold to a rogue.Her daring action pushes her to the precipice of death, unwittingly awakening a powerful demon wolf, imprisoned for 15 long years. This Alpha demon, who has yearned revenge and bloodthirst, is instantly drawn to Esmeray the moment he senses her, and he is determined to keep her at his side at all cost.In the world of wolves, the hunt is everything — and he has found a prey worth chasing.

I got transmigrated into a game I’ve never seen before.

I thought it was a top-notch RPG and spent 30 years on it.

I retired as a war hero and planned to spend my remaining time leisurely.

But it turns out, it was an academy story?

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

An ordinary young man reincarnates as Adrian, the eldest son of a once-prominent noble family now living out in boonies of the kingdom. Watch as Adrian embarks on a tantalizing journey, to support his graceful and caring mother and feisty older sister, as a man should, with his seduction system.