MTL - Reborn As a Top Student In the 1990s - Chapter 22 Solve the case

Gods and Myths rule over the lands on Earth. They give their citizens food, security, abundance, and most of all…Immortality.In exchange, humans went over the 4th Dimension and killed Canzers, the monsters that threaten the sanctity of the God's dimension. They are called Saviors.At 18yrs old, Atlan finally gained a chance to become a Savior. But…he inadvertently gained the powers of the God of Death.Was it useful in a world of immortality?Yes. Nobody knew that when Atlan overthrew the Grim Reaper, an apocalypse would doom the world.Humanity lost its immortality. Ordinary people, Saviors, and even Gods could die now.[You have witnessed the extinction of Angels][10-star rarity Angelic Genus acquired!][Your Bloodline has evolved to Angelic Reaper of Gods][You have reaped the deaths of 10,000 Angels][You have gained 1,000,000 Upgrade Points][You have gained 10,000 experience][Lightspeed Angel Wings body mutation acquired!][You have reaped the death of the First Savior][10x Level Booster trait acquired!][SSS class Apocalyptic Hellfire acquired]

Masterpieces such as 'The Divine Comedy', 'The Theory of Evolution', 'Encyclopaedia Britannica', 'The Theory of Relativity'...Born in the history of human civilization, possess mysterious and magical powers in another world!Original sin, biological evolution, mastery of all arts...By reading the secret tomes, one can gain a variety of powers!The only trouble for the people of the other world is that they find it difficult to understand the texts from Earth.At this time, there comes a librarian from Earth...

In a world where dungeons were an essential part of it, Rein was trying to conquer as many as possible. They were the key to gain powers in the fastest possible way. So, to reach his full potential and to become the strongest, he became a great dungeon conqueror.With his trusty friends and lovers, he was definitely going to reach the peak alongside everyone. Join Rein and see how he went from strong to stronger and then the strongest.__________________1. The harem would not be too large(I'm not sure how many but probably just 4-5 main and few other here and there). All the girls would be getting their time and story.2. The story is starting when the MC is in the middle of his growth stage and not at the very beginning. But his beginning will be mentioned in the story in some form.3. I don't think I need to mention this, but obviously it will not have any NTR, rape or that kind of stuff. It is actually quite a wholesome story focusing mainly on adventure, action and bit of romance and slice of life.

Forget about moving to the other side of the world and starting over.The Apocalypse is here!As the only survivor of the Tutorial Quest in his area, Elijah awakens the Class of “Depraved Hero”, an ominous-sounding Class with a Legendary Rank!Additionally, because of the insane difficulty as well as his Clear Rank, he gains the Skills that, according to the mysterious figure that is the Administrator, he needs most.[You have Developed the Skill “Absolute Authority[A]”.][You have Developed the Skill “Slave Mark[C]”.]