Bu Sha - Volume 5, Chapter 5 : The Broken Seal

A gigantic mouth appeared in the sky and swallowed the entire Earth, scattering the shattered fragments everywhere.“Welcome to the Myriad Heavenly Hunting Grounds, your talent is the Lord's Cottage.”Earthlings received the developmental ability called Lord's Cottage, beginning their struggle for survival in the Myriad Heavenly Hunting Grounds.Fang Jie, holding the initial item 'Faction Conversion Command', gently tapped on the undead faction. Starting with the undead fission talent, he could make his subordinate undead split and increase in value, and the talent could also be upgraded.

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.

Have you ever thought that the state of the world as it presently is, could revert to the laws of the ancients? When a series of strange incidents beginning with the disappearance of his friend led Luo Yuan to question the possibility of an apocalypse, he becomes embroiled in the midst of a global-scale chaos.

Evolution has turned the flora and fauna of the vast and bountiful Earth into something that had never been seen before. Coincidentally, the all-dominating Homo sapiens have ended up at the bottom of the food chain. From mystery to crisis, will Luo Yuan discover a means of saving humanity by racing to the top of the food chain? Or will he strive in accordance with the law of the jungle? It is the dawn of an age of the survival of the fittest.

- Description from Novelupdates

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.