Harry Potter: A Certain Ancient Rune Professor of Hogwarts (TL) - Chapter 5

The World Tower had unimaginable wealth and treasures inside it. As long as one made it to the higher levels, they would rise above the common folk and enjoy a glorious life.

The tower had 1000 levels. Some said that one could obtain all the wealth in the world if they reached Level 1000. Others claimed that beyond Level 1000 was a beautiful new world or even heaven. Some people said that one could obtain the abilities of a god. Others claimed that any wish of theirs could be granted.

The current most powerful team in the world made it to Level 929, where no one else had ever made it to before. They still ended up being wiped out tragically. The members of the team placed the unique treasure they obtained on the body of their captain, Wang Wen.

Wang Wen managed to survive.

However, he was sent back 20 years ago.

With his previous life’s emotions and experiences in a new life, Wang Wen stood before the World Tower, calm and determined.

Claire receives a strange dream the night before her 18th birthday, an unknown goddess offers her power as her paladin. This power comes with a “gift” Claire was not ready for, but if it means getting her brother back, then she'll master it. Join Claire and her party as they navigate adventuring, fighting against tyranny, and the gifts the goddess bestowed them.

A tale about the former leader of a special organization served under royalty, now leaving his past life behind and unintentionally getting involved with the martial world.

- Description from Novelupdates

A man who was once called the world’s strongest agent ended up becoming a teacher after his retirement, to train a new generation of agents. After many years of training his disciples, he was killed at the age of 60 by a secret organization’s ruse and was reincarnated in another world with his memories intact. Though he was surprised by the existence of magic and the strange species in that world, he quickly adapted to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his rigorous discipline, in order to reach his goal: Resume his career as a teacher which he left halfway through in his previous life. This is the story of a man, who, based on the memories and the experiences of his previous life, became a teacher who travels through the world with his students.