I choose a C ranked hero in another world, I was mocked online - Chapter 313: The Man Who Walked Out of the Nuclear Explosion!

Being young is a treasure, but education is indispensable.For Han Yu, who started working at sixteen, being too young wasn't a good thing.Due to his young age, he was almost turned away by the leaders when assigned to a bureau.Witness the story of the youngest police officer in the history of the Linghai Public Security Bureau turning his life around.

I am Master Siwei, and I speak for arcane arts.
This is an era of heroes and heroines.
This is an era of great changes.
In the end, it will be an arcane era opened by me.

- Description from Novelupdates

The notorious firearms crime lord Chen Zhang An a.k.a Old Fox was placed under house arrest by the very successor he groomed.

“For a long time, we humans have been like the chosen race, without any natural enemies, and have long been at the top of the food chain. Unfortunately, I have to tell you...” “When there is only one bird in a forest, then the forest is basically fake, and the bird was put there by someone...” “No matter how a fish swims, it can never meet any of its kind, which only means that the fish is kept in a fish tank...” “Yes, we are the birds in the forest and the fish in the tank.” “Yes, the world we live in is virtual!”