The Billionaire's Multiplier System - Chapter 64 - 65 – Red Silk and Knives: A Crimson Banquet Begins

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

After a young lonely orphan boy died on earth, He was reborn as the Prince of the Everhart Kingdom in Melux. And in this life, he got everything he ever longed for: Luxuries that he didn't have, magic that he only read and fantasized about, different types of sweets that he didn't even know about but most importantly, he finally had a family!He was pleased with his new life as he had parents who despite being the King and Queen of a Kingdom always managed to spend time with him and His maid who would do anything at his words. He could experience the joy of sharing a dinner with family, getting angry over silly things, and then apologizing while bawling his eyes out. He finally felt like he was not alone in this universe anymore and he also had people who cared and loved him dearly. His second life was seemingly perfect in his eyes until that horrifying and gut-wrenching night that flipped his entire world......

Shen Mo transmigrates into the body of an outer disciple of the Qingxuan Sect, once the brightest among his peers. Just as he is on the cusp of entering the inner sect, his foundation is cruelly destroyed by poison. At his lowest point, Shen Mo discovers an extraordinary ability: the power to see and seize the fated opportunities of others.Are you a powerful reincarnation destined to acquire a Heavenly Tier technique? I'll take it!Are you the future Flame Emperor, refining the essence of the sun? That power is mine now!Are you a descendant of the Martial Ancestor with a Heavenly Tier spiritual weapon? Hand it over!Are you the sacred maiden of the Fox Clan, about to tame a sacred beast cub? Both the beast and your opportunities belong to me now!“My fate is in my hands, not others', for I am the CHAMPION OF DESTINY.”

The main character is reborn as a character from a game he played in his previous life. This character falls into ruin along with the villainess, spending the last of their years together. A man named Kururi Helan.