MTL - Studying Science in the Alternate World - Chapter 263 Avatar form

As a wandering soul trapped in endless cycles of reincarnations, Claus must decide what to do in his current life.

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

The daughter of a duke, the stuttering Maximilian, married a knight of lowly status at her father’s coercion.

The pleasant world was ruled by Five monarchs and the sixth was erased from history of the Void Era.Kairos Vedaryan lives as a common wind-mage with a curse of past life haunting him in present life.Seyana Solaris, the Princess of the Sun Kingdom, suddenly awakens a divine power known as 'Divinity'. Her awakening shifts the balance of the world. The terrifying Black Mist Knights descend to hunt her, and Malgreth the legendary Demon Lord who waited in the shadows for 300 years finally makes his move to devour her 'Divinity' and conquer all.As the world moves towards war and Seyana becomes a target for monsters and mysterious entities, Kairos's mind sends a Blackout Signal flashes about Ascension.[SEAL BROKEN!][LETHAL THREAT INCOMING!][ASCEND AS PRIMORDIAL HEIR? YES / NO]The Blackout Ascension begins!