Shinji Matou at Your Service - Chapter 235 - : The Paradox Spiral Begins

Nikolai gets bitten by a vampire and a werewolf on the same night. Their bites cause his hidden blood to awaken as the first hybrid. He grows stronger by devouring the blood of his enemies and lacks the weaknesses of both races.Despite this, he lives a normal life during the day. While at night, he explores a dark, hidden life, working for a spoilt princess and helping his obsessive friend. One is a vampire—the other leads a werewolf mafia group.Lost in this strange world, he finds help from Eliza, the strange pendant his mother created before she died. This helps him realise the world isn’t what he thought as he faces constant threats and danger from those who despise him.In this new world, his growth is rapid, and with endless possibilities, Nikolai fights for his life and to protect what he finds important while rising to the top.

In novels with a stud there is always a Senior Martial Brother like this:

In the early stages of the novel, his innate talent is high, his cultivation is good, his appearance is handsome, and he has an intelligent, cute younger Martial Sister as a fiancée.

In the middle stages of the novel, he is caught unprepared and defeated by a young disciple (the protagonist) in the sect who’s hardly remarkable at all. From then on, he falls from his godly altar and loses his brilliance. Even his young Martial Sister leaves him for someone else.

In the late stages of the novel, he continues to turn dark, going down the Demonic Path and becoming the major villainous boss. However, the protagonist still ruthlessly defeats him and his soul is eternally sealed.

Once Qin Mo opened his eyes, he discovered that he had become this Senior Martial Brother.

- Description from Novelupdates

This is a story of a little man who walks forward silently, in awe, and strives to chase his dream.

- Description from novelbuddy

WARNING!!!(This novel is R18, The MC steal girls and his abilities on improve with sex alone, less adventure, more sex and humor)The Adventure and His fighting abilities only starts by chapter 10.so enjoythe MC steal girls and more, nobody is fucking his women just a big cock guy fucking everyone's women...NTR, CUCKOLD,LOLI,MILF, HUMILIATION,FEMDOM, MALEDOM AND HAREM .... For real no capI wonder who this body belonged to originally and what happened to the poor bastard's consciousness when I took over. Is he floating around in my body back on Earth, just as confused as I am?I sit on the edge of the bed, trying to make sense of it all.One moment I was on my couch scrolling through my phone, the next I was standing naked in Lady Vivienne's bathroom. No warning, no magical portal, no summoning ritual. Just... poof.