Reborn as an Yandere : Yandere X Yandere - Chapter 246: Tunnel Of Evil!

Humanity had finally ended the war with the Demon Race and sealed them away, forever.However, they now have to face the treat of the Shadow World, an equally dangerous threat to their civilisation under the rule of the Emperor!Facing only misfortune from a young age, Nikolaus Reinhardt never expected anything good to happen to him.But his world completely changed when he awakened as an Ascendant, and accidentally summoned a member of the Demon Race in his house.Just because he messed around with a god damn book!

Witnessing her boyfriend cheating on her with her bestie, Shiyao was so angry that she went to a pub for fun and met a man, who was really a piece of work. After a crazy night she fled away, but was embarrassed to know that the man she slept with was her boss You Ze.
Jesus, give her a break!

- Description from Novelupdates

The Invincible Immortal Emperor reincarnates, taking over the body of a student at the Huaxia Medical College. He displays extraordinary skills both in combat and medicine.In his previous life, he was the undefeated War Emperor and the supreme master of medicine. Yet, he found himself ensnared in the mundane affairs of the world, confronted by endless temptations.Would he lose himself to these temptations or remain steadfast in his principles? Would he succumb to despair and decadence, sinking into oblivion, or would he rise with strength and resilience, reversing the course of destiny?As he sets forth on his path to reclaim his status as the Immortal Emperor, he vows to make the ghosts and gods of the myriad realms tremble in fear!

The year is 407 AD and Rome is at the precipice. In the West, a usurper by the name of Flavius Claudius Constantinus has declared himself emperor. By doing this, he and his traitor legions have fractured the Western Roman Empire into two. At the same time, the north bleeds! Countless germans swarm across the borders of the Empire and pillage its lands in their ruthless raids. Alaric, King of the Goths, rises to a position of prominence and threatens the ancient capital of the dying Empire with his barbarian hordes. As if things weren't bad enough, rumors from the east state that a mysterious power rises within the fogs of war, threatening to drown the Empire in a river of blood.

As a response to these threats, the indolent emperor Honorius has given orders to his supreme commander Flavius Stilicho to reclaim the province of Gaul from the usurper. However, should he leave the heartland of the Empire undefended, undoubtedly Alaric would invade. Thus, under the threat of barbarians at the gates, Stilicho dispatches a young roman general by the name of Titus Claudius Marcellus to bring an end to the reign of the usurper. Will Rome fall to the tides of barbarians and traitors alike? Or can Marcellus restore a world collapsing around him? Find out in Heir of Aurelian!