An Extra's Rise in an Eroge - Chapter 144: Back to Academy

Violet skies, a world undergoing massive changes, a deficient moon, interlinking voids…
When the world experienced a cataclysmic event,the majority of living things ceased to exist. Although humanity survived by hiding in the last safe zones, humans had to face mutated dire beasts and colossal source beasts that could break through the space barrier and enter the earth at any second.
Luo Yunyang, a young man who grew up in those calamitous times, obtained an attribute regulator and set out to walk the path of supremacy!

- Description from novelupdates

Noah, who was obsessed with the game 'Survival of an Extra'.He spent months chasing an elusive alternate ending.During one of his playthroughs, a glitch and a mysterious effect spirals the game into chaos, killing off characters one by one, everyone in the game slowly started to disappear.In the end, He awakened something he shouldn't have known about, his fate ended in one world and began in another world.Awakening as Noctis Nightryn, the Game’s protagonist and a “extra” Character of the unfamiliar world.He now had to find the cause of the bad ending he had triggered and prevent it at all cost, all while seeking an ending of his own to survive.Since the first day, he arrived to the world everything he knew about game started to differ. The main character were not the same as in the game.Noah realized this world was no longer the same game he knew—since his arrival, everything had already began to deviate, forcing him to make decisions he didn't know would lead to.

In a tyrannical world, what is evil? What is benevolence? All living creatures are brutal. Passing through the heaven road to find one’s purpose in life. Struggles to be stronger is not an easy path. The whole journey thistles and thorns, one blade chops open a path, I alone will be supreme!

- Description from Novelupdates

Horror of the Continent: The Immortal King Brings Despair, While the Light Knight Defies the Divine Will.In an era of chaos, numerous heroes emerge, striving to navigate the tumultuous land. However, amidst this turmoil, sudden and enigmatic forces make their appearance on the continent.Little did they know, it was all me.…To be precise, they were my alter egos sent to this other world.#Unintentionally becoming the villain of the world.#Somehow, I become both the demon king and the hero.#One person, multiple roles.