MTL - Scattered Immortal - ~ Great Chaos Trial Penalty

Satou Shiki a Japan present-day university student suddenly one day he got attacked by a slasher when he open his eyes he was already transferred to another world’s labyrinth city. In that another world he who was awakened to do a lot of “things”.

Seven billion humans living on the Earth time-traveled together after they had woken up one morning. They all heard a synthesized female voice.

Uzumaki Naruto wakes up one day to find out that his life has been turned into a RPG game, thanks to his 'Gamer' ability. What should he do about this? Smart(er) Naruto. Elements of Romance Games included in later chapters, so possible upgrade to M later

When the land was occupied by demons, people had no choice but to flee to the sky. After transmigration, Ricky found that he had become the City Lord of a Sky City. He quickly became familiar with this new world and established a clear direction for survival, which was to resolutely engage in farming (kingdombuilding)! He would farm (kingdombuilding) diligently, develop vigorously, and then gallop through the skies. If anyone disagrees, then launch a great sky battle. Or a war!