MTL - The Path Toward Heaven - v2 Chapter 9 Maybe it's wrong from 1

Suddenly a high school student Subaru Natsuki has been summoned to another world on the way back from the convenience store. With the biggest crisis of his life being summoned to another world and no sign of the one who summoned him things become worse when he is attacked.

+18 Warning Mature Content - Reader discretion advisedA wolfless ward and an illegitimate dragon prince must overcome immeasurable barriers to free themselves from the stigma they have been placed under.Abandoned as a child Lily Artemis Wolfman was taken in by the Royal Family of the Wolf Clan only to be treated like a slave, working her mercilessly night and day.When her wolf didn't appear, Lily used her only avenue to free herself on the day she became an adult.Finding a mate was the last thing Dimitri De Drago` wanted since his family was hell-bent on killing him, but when he came across a strange female amid a massacred village his dragon stirred for the first time at the sight of her.Turning her away only to find her again caused sparks to fly between the two like they never knew was possible. Facing fatal issues within his Clan, finding his mate came with serious consequences.They knew trouble would follow if they stayed together, but their souls demanded each other risking it all for the chance at happiness.Will their love remain strong through the trials and tribulations they face or will tradition and their families stand in their way of true happiness?

Flatten the Devil's Palace, eradicate the demonic cult, slaughter the demon lairs, sweep through the demon realm, dominate the heavens and earth, control the three realms, be the supreme master of the mysterious sect, master of the Nine Yin, the 17th head of the North Star Sword Sect, the Heavenly Fiend Lone Star, the Supreme Sword Soul, the Supreme Infinite Mysterious Heavenly Wishful Great Sword Patriarch... Also known as Iron Egg, known for the wild history of relentless killing.

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