MTL - Transmigrated into the Film Emperor’s Death-Seeking Fiance - Chapter 177

Surgeon Guan Ryo Is reborn in Naruto’s world! Enjoy his trip as he uses his knowledge of the story to find his path in this troubled world and eventually stand at the top of Konoha!

- Description from Novelupdates

Waking up as a baby in the Naruto world, reborn in the same generation as Naruto and Sasuke—Izayoi knew this was a hell-level start.But at the age of one, everything changed. He awakened the Talent Entry System.As long as he defeats an opponent, there's a chance to absorb one of their unique talents and add it to his own arsenal.His Newbie Gift Pack?A one-time talent copy ticket.His first thought was to use it on Naruto and copy his Sage Body.But then—he had a better idea.Why not use it on Ōtsutsuki Toneri, the moon dweller who once descended to Earth just to glimpse Hinata from afar?In a world ruled by bloodlines, where power flows through heritage and strength decides everything, no cheat is more broken than the pure Ōtsutsuki bloodline.~~~

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

He was aloof, reticent, and indifferent to women. Many girls expressed their liking for him, but he refused all with three sentences: “No way,” “No need,” “No possibility.”Except for one person—her.Since she moved in and lived with his family, he changed a lot. The used-to-be aloof guy not only helped her with her homework but also protected her all the time. He liked to tease her every day.“Be good. I'll let you kiss me.”“I will only answer your questions.”“One wrong letter, one kiss.”