Rakuin no Monshou - Volume 2, Chapter 2: Days at the Imperial Capital

The system: We must take the plot seriously!

Mo Fan: Ok.

The system: We cannot be OOC!

Mo Fan: Yes.

The system: We have to be cold. We must be ruthless. We cannot lose ourselves in this imaginary world.

Mo Fan: …no problem.

Not long after…

Mo Fan: System, can we talk? Hold my gong and take him away.

System: ……

- Description from Novelupdates

In a world where reality shifts with every roll of the dice, a man daily partakes in an extraordinary game with the gods, his actions dictated by his decisions and the face of the dice. He takes great joy in this game until the tables turn, and he himself becomes a piece on the game board. Now, the dice are in his hands, and it’s his turn to shape his own destiny. It’s time for the Snowman to play his part.

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates

Going back to the beginning of 2006, he became the head coach of Real Madrid. All of his men are superstars with great reputation in the world, such as Ronaldo, Zidane, Raul, Beckham, Casillas, Carlos, Ramo. Si… all of them are ruthless characters who can make the world football tremble by stomping their feet.

How can a humble rookie train these rebellious superstars?

- Description from novelbuddy